First Ever Concussion, I feel abandoned??

So I blacked out on Sunday (Potentially a seizure, waiting to see my Neurologist) and unfortunately fell flat on the back of my head (As in my head broke the fall). I was found by two passers-by and thankfully they rung an ambulance who bluelit me straight to A&E. I had an immediate MRI and CT to check for a brain bleed which thankfully I do not have however they did diagnose me with a concussion. I stayed in hospital till Friday however I don’t remember anything. I have been in a perpetual state of what feels like drunken/high hell ever since and I’m starting to get worried.

How long does this last? What can I do to lessen the pain? They basically told me I will feel off for a while but to take regular painkillers and rest and that’s all I really can do but I can’t lie I don’t think I can cope with how out of it I feel? I feel sick permanently and my head feels like it weighs a tonne, just moving alone makes me feel like I’m about to collapse. I took a walk outside for the first time today and I sweat through all my clothes from how much physical fortitude it took to move, as in my clothes were SOAKED wet from how hot I became from a simple 10 minute slow walk.

Please I need all the advice/help I can get. I have zero experience with head injuries and I don’t feel like they informed me in any way what’s normal/what’s not with this. I’m really panicked that either I’m a pussy or I should be attending A&E again for a reassessment???