I think you are increasing too fast and changing your dose without giving it enough time to stabilize. It took me 6 months to get up to .2 mg of Florinef by increasing 1/4 tablet at a time. Granted, I think I could have done it faster now but I think you are increasing too much variability by changing your dose every few days.
Florinef is a VERY long lasting steroid. It can take 2-3 weeks to feel the full effects of a dose increase.
During that time, it's crucial to keep track of your electrolytes through regular labs (I got mine done every week at first, then every 2-3, and then monthly). Everyone will have different requirements for water, salt and potassium and it is impossible to predict what yours will be without labs.
I also think you are not getting enough fluid or enough salt. But again, it's labs and BP that dictate this. I will tell you that for ME, when I was on .2 Florinef, I needed 3-4 teaspoons of sea salt (one teaspoon in each liter of water I drank throughout the day) and 80 mEQ of slow release potassium. That's a LOT of potassium that can only be safely taken when monitoring regularly. But for me, Florinef was a HUGE potassium waster. A banana a day would have come nowhere near to my potassium requirements.
A BP monitor is also a crucial investment because you can see your diastolic BP come up with Florinef. For me, once I got into the 70s, things started to improve. Your systolic BP will generally also improve (whatever direction apparently it needs to go
It took a while, but my dizziness did go away on .2 Florinef with the appropriate water/salt/potassium combo. If it were me, I would work at this in a much more systematic way before trying bio aldosterone or even adding licorice (which I eventually did and thought worked well). But licorice at this point would just be one more confounding variable and has other effects (primarily estrogenic) that may or may not be desirable.
If you have low cortisol (have you checked your adrenal status?), that may also be complicating the picture. Low cortisol causes me extreme dizziness and Florinef won't help with that at all.
Just my .02.