Hello everyone, Let me just start off my saying that I'm very happy I've found this great forum. I love that everyone is here to share and help one another. [my medical history]: I'm 28, male, healthy despite having a hyperactive thyroid. I have been dealing with an overactive thyroid (Hyperthyroidism) for the last 5 years, just recently within the last year have finally gotten it under control. My FT3 and FT4 are both within range but my TSH is still a bit low but improving with every new set of lab results. I was initially placed on a high dose of methimazole (40mg) a day for several months this brought down my really high numbers which were almost double or even triple the normal range, to near middle of the range level numbers. But with this I started to experience a whole new set of problems. My personality and mood changed, i was getting cold all the time, I was easily startled, extreme anxiety, easy to panic, unable to deal with stress at all, always tired, my sleep pattern wasn't the same, very irregular heart beat, blood pressure that would spike high at random times, adrenaline surges on the slightest bit of excitement. My legs are so fatigued all the time and in pain also feel like there are needles in the back of my calves at times. Buzzing and vibrations in certain limbs and parts of my body. And most of all twitching muscles/nerves all over my body. [Why I'm here]: About 2 months ago I had a really bad scare that sent me to the emergency room. Prior to this day I've been waking up extremely lethargic and exhausted physically and mentally and this day was no different. I went to go see my girlfriend before I went to work, she said I looked completely drained, my under eyes looked gaunt and as if I didn't sleep in days and I was very pale looked sickly. My heart beat was irregular with skipped beats and I didn't feel like speaking to anyone, in fact just talking felt like a huge burden and the more I would talk the dryer my mouth was getting and felt weaker and weaker with every word I spoke. My mouth felt so dry even though I had been drinking water it wasn't helping. After the date with my girlfriend I rushed to work because I was running late, I just didn't feel right I felt off, my balance was not there while walking and I felt like I was in a fog mentally. Once I arrived and changed into my work uniform I said hello to a coworker but my speech was slurred and my mouth felt like it had cotton in it. I got dizzy and had bad vertigo I thought I was about to faint and my heart rate went a bit high and very irregular once I started to panic. I told my coworker to bring me water, I drank 2 bottles of water and a bottle of Gatorade to try and see if it would help out my dry mouth and speech and it barely made a difference. Since this initial attack I've been getting them every few days especially after a stressful event. I've always been able to deal with stress without a problem but now it destroys me. It always starts with this mental fog and a feeling of trying to walk fast but being held back into this slow pace and vertigo and a feeling like my brain is disconnected from my body and then the extremely dry mouth starts up and then BOOOM! Panic and adrenaline and it would last for an hour or two and then finally start to subside little by little and by the end of one of these attacks I'm exhausted to the point of just wanting to sleep. [The outcome]: They did an ekg and blood tests and everything came back normal. And soon after I felt a little better and I went home but after this initial attack I had several of these panic attacks for no reason at all. I can't deal with any stress, my legs are in a excruciating amount of pain and fatigue. With just the slightest amount of physical or mental stressors I would feel drained for 2-3 days. I have no idea what is going on, I went to a rheumatologist and a general do to who did all sorts of blood tests and said everything came back normal. The doctors seem to think it's because of my thyroid is overactive but they won't listen that I've been dealing with a hyperactive thyroid for a very long time and these attacks are brand new. Please any input would be greatly appreciated I have no idea where else to turn, the doctors try to state tha lt everything is normal and act as if this is in my head. I'm desperate for help and advice.