About a month ago i hit my head and got a concussion. I am past all of the dizziness, nausea, and cognitive issues (all healed up), but I still am not able to exercise.

I understand I have to retrain my brain to handle the vascular load, or also termed, retrain my central nervous system to handle exercise. Right now I can barely walk 5 houses down the road without my brain swelling up like a balloon.

I'm goign to start physical therapy shortly for "regulated exercise." Curious if anyone else has done the same? What were the outcomes? I am a triathlete and need to get healthy and back out there. thanks.