Hello PCS family!

Just wonder if anyone had a time when you overdid, overworked. went through a stressful event that left you extremely mentally fatigued, unable to speak ( as if there is a block in your brain that prevents you from talking), constant burning feeling in head, nauseated, lightheaded, eyes hurting. It’s been over 2 weeks and I’m still in bed, unable to talk, with ice on my head daily and contemplating ER.. any thoughts?
Seemed like a migraine in the beginning but not any more... what is this burning, electric shocks sometimes , feeling?