After taking propecia I developed postural tachycardia syndrome which is increased heartrate while standing/ sitting up or walking. If I stand up and start walking my puls goes from 70-80 to 90-130.
Ive read that the reason PTS developes is damage to the autonomic nervous system. On wikipedia it reads that PTS is a condition featured by Dysautonomia.
Here is a study that claims that PTS may be caused by brain injury. Notice all of the patients are women, thats because this condition effects significantly more women than men. https://www.ncbi.nlm.nih.gov/pubmed/20865679
Quote from the study: “Six patients developed significant cognitive dysfunction, and three developed a chronic pain syndrome following trauma.”.
I myself had cognitive dysfuntion (heavy brainfog, horrible memory) but it has gotten a lot better after a year since I quit propecia. PTS still persists and is a serious issue but it has also gotten better.