acute anxiety after drug use...

In febuary this year i went out taking drugs and drinking vodka i always do this on weekends with friends ect . any way i went out and got highly drunk and went to bed i woke up with a complate numb physically numb head and my vision was servery off balence. i started to panick like mad thinking i have damaged my brain because of these symtems i was awake for 3 whole days and walking around in a state of worry and panic. i rang then i thort this is getting serious i need help i rang emergancy line and they explaind what had happend to me and told me to go to the doctor and they will help .... and so on i went to the doctors a day later and told him what i was suffering his reply .. you are a wreck i sed no i have damaged my brain because its numb and killing with shooting pains and brain fog nothing seems real at all . he sed you havnt damaged your brain you havce messed up your chemisty its serve anxiety. he gave me antidepressants strong 1ss i started taking them they put me in my bed for 2 weeks and nothing is working i still feel the same went back had blood tests done came back fine ? . then i was sent to see a syciatrist becausde i thort i had skitzofrenia and i havent they sed same gad anxiety gave me estoalopram( lexapro ) again nothing is working feel physically ill with brain fog and feeling brain dead dissconected. then the doctor had gave me strong valium and sleeping tabs to go sleep they didnt realy work at all . then i stared to taste burning and smell burning bad so i toild him so he send me to see a nuologist i told him what had happend he was consurned because i smell burning he sed the brain fog feelking dissconected memoryloss is all anxiety dont worry i sed what u meen dont worry my brain is numb and foggy this is not mental health its damage ? i had my ct scan done and doctor says i 100% sure u it will come back normal i sed i no its not a brain tyumor or anything its damage so i am now obsessed withbrain damage but it did come back normal so now i want to no y i get cronic head pains memory loss smell and taste burning ? all these months going bye and no comment i need to no docor neuologist syciatrist says anxiey but resently my head and neck is shaking and my head is tensed ITS WORRYING ME TO DEATH i feel like im in a sezure its unreal cronic head presure shaking and stiff neck putting presure every were ISIT anxiety OR something elts ? i feel so dumb i carnt drinbk alcohol any more because i end up in a&e having ecg on my heart and thats normal so now i am fed up derprssed and feel like im dyeing and beliving i am dying i think now iv got a brain tumor because of smelling bhurning and memory loss head pains feeling dissconected ect ect ect isit just anxiety or am i going insane or dying i need to no im at theropy atm shes a good worker but i cant come to terms its anxiety ???? PLEASE reply , many thanks