Have you had any imaging done to see if there's something physiological that's causing that feeling of pressure?

Other than that, I don't know what to tell you except to hang in there.

I've been suffering from PCS for a little less than a year due to a sport concussion, and although my symptoms have gotten better, I still have a long way to go.

I try not to think about or listen to the doctors that told me that I didn't have a concussion, or didn't believe in that they exist (shocking in this day and age when it's something that is all over the news whether you are into sports or not). I was so desperate to be active once again that when one of them told me I could go back and train, I did, which set me months back in my recovery.

I certainly understand how you feel. Not being able to train alongside the other athletes or even hang out with them has been really hard - my sport and training for it was such a huge part of my life, and PCS has taken it all away.