Some symptoms came on over a year, others always there, just got worse. Thought it was stress. 1) Severe constipation. 2) Gastroparesis (stomach won't empty well). 3) Migraine like symptoms without headache. 4) Brain fog so bad I had to take off work. 5) Exhausted to the bone upon upright. 6) Temperature - hot then cold, then hot, then cold. 7) Pupils - pinpoint, then dilated, etc. 8) Lightheaded, even when just sitting still. 9) Short of breath. Not until I put all these together did I realize it was the POTS back in full. Saw primary who did an EKG - normal except for low rate of 55. Pulse on exercising just does not get up there (15-20 minutes on the bike and I can get just to 100). Used to get my pulse to 130-140, not anymore. Current treatment: Florinef, midodrine, compression stockings, exercise (bike), salt tablets. Staying away from anything that will increase norephinephrine. To try to get some energy and brain function when upright, I'm wearing 2 pairs of 20-30 mmHg compression hose and that does help with the weak and dizzy feeling. I must return to work 02/12/2016. I'm thinking of increasing exercise a lot to try to put some blood up above my thorax. I thinking of increasing the salt tablets even more to try to retain some fluids (from my appearance, I am dehydrated, from my urine concentration, I definitely am dehydrated). Clue: Very strong coffee will get rid of the shortness of breath. Usually do only tea, not coffee. Suggestions are greatly appreciated.