Hi, I recently got diagnosed with POTS following a bout with walking pneumonia. So I have been reading up a lot on POTS and trying to get some further understanding on my condition. Several of my doctor friends believe this may be a transient condition and I may be able to recover from this. My primary care phy does not say either way yet...he is leaving it to the specialist I believe (whom I am seeing in the upcoming week). As understandably, I am a bit anxious about this whole thing since POTS is new to me, and hence trying to get more information. So wanted to know if anyone else had, or knows someone who had, a similar experience and can share if there was a full recovery or not in such a case...please read background below for my experience. Thanks in advance to all. Background: I had a bout of pneumonia last month with the bacteria being the mycoplasma pneumoniae. Took a 15 day (3 courses) of zithromax, as recommended by my doctor. Well, after 15 days, I had 3 ER visits where I was given 2 litres of IV saline each time and sent back home, except on the last visit where they admitted me for a couple of days and diagnoses was given as POTS since all other tests were negative. In subsequent week, MRIs were done for adrenal and pituitary, which were also negative. Currently my hr goes up by ~30-40 bpms from sleeping (60) to standing position (90-100). In hospital it went from 60 to 120 in those position. One instance at the hospital, it even went upto 160 in sleeping position and came back down after 10 minutes...this was after being kept overnight on slow dextrose IV....(I don't think it was anxiety??) Currently, light walk to bathroom & back seems to something increase the hr to 110 and sometimes (when well hydrated) seems to be better and stay between 90-100. BP seems to be just a few point different each time between sleeping, sitting & standing positions. I was prescribed fludrocortisone for now. It is almost 2 weeks out of hospital and although my HR is better, I believe it is only due to being well hydrated and eating well in a day, and taking the fludrocortisone. Also trying to keep away from all diuretic foods for now. I am going to see a endocrine specialist and cardiologist in the upcoming week. I am on mostly bed rest for now as I am still trying to regain my strength and weight. I am 39 yr old male with pre-pneumonia weight of 135 lbs, and currently 124 lbs. I had a couple of bouts of severe fatigue also last year but there was no real diagnoses at that time since it went away after a week, each time. Generally, I have had stamina problems all my life.