I'm sorry you're feeling so despondent. I don't have a TBI or PCS but I do have Multiple Sclerosis. So I think I can somewhat relate to the stress of having a condition that, sometimes, nothing seems to help.

Do you have a friend or loved one that you can vent to? If not, sometimes just typing out your feelings here helps alot. I know if does for me. Just knowing that someone on the other end of that computer has an idea of what I'm feeling helps me so much.

Not sure what your weather is up in TN but I'm not too terribly far from you here in North Georgia and it's a gorgeous day here - although too hot for me. I cannot tolerate the heat so I'm being a hermit.

I truly hope you feel better. Wish I had more to offer than just words but I do care and hope you'll keep posting here.