I took pseudophedrine yesterday because it's the only thing that really helps with the POTS. And it gave me enough energy to clean out my fridge and do alittle cleaning in my bathroom. But today..........false energy CRASH. Any time you use a drug to give you false energy, it does real physical damage. It's not something I would recommend. I have like zero energy today and had to sleep this afternoon. And still in pain and can't do anything. I had to sit while cleaning out the fridge. I found that helped alot. Just pulled up a chair to it. Unfortunately, I still have things that need doing before I move. I'll probably end up resorting to the pseudophedrine again a few times. In one way, I think it should be used as a treatment for POTS because it keeps the blood pressure up and it does stop the lightheadedness and make you feel more normal. But it's temporary, and the crash really is not worth it.