Suggest Treatment For Panic Attack And Psychosis

Question : hi, can you tell if you had neurological damage or muscle damage? I had a psychosis and a huge panic attack and what felt like electrical activity in my brain and huge surges on energy rushing threw my body from head to toe for 4-5 secs at a time years ago. I had a mri done and it came out all clear no legions on the scan ,had a nerve conduction test done all fine muscle biopsy done all ok I had a physical exam by neurologist and it was fine , had a muscle weakness test and this was 20-30 % lower than the normal range but no change after subsequent repeat tests over a year or two. I go to the gym and feel fine the following day muscles feel pumped up and fine no weakness but other times I find it difficult to type , my then neurologist said on its own the muscle weakness test doesn't indicate anything, so how would a person know for definite? If I had done damage to my nervous or muscles would it be noticeable and would it have showed up on what tests? I really need to know to get on and live my life without this hanging over me. I took cannabis half a E and a bit of cocaine one night small amount and a week later my meds were changed from Seroxat to Effexor Sr 150mcg, had fierce trouble on Effexor and ended up coming off it gradually and two months later developed a psychosis and ended up having a massive panic attack and that strange electrical activity in my brain while I was terrified in bed. I need to know what symptoms would present themselves if there was damage done from that weird electrical activity that happened when panicked out of my mind with fear in psychosis. Please help me its so hard to let go without being fully informed of how you would know and what tests would have shown that.