I am 62 year male , I have some side effect to NSAIDS medication , I was taking it as pain killer for my knee , suddenly I have sever headache ( thundeclap headache ) , swelling in legs , and left side chest pain in deep sleep , which would wake me up . After stopping all this no symtomps .
Everything is okay like my
sugar , heart ,
kidney ,
liver .
Why such symptoms, also the hankover of all this medicine use to stay for 48 hour , next day I would feel all day drowsy ?
What may be the cause , is it neurological or something else ?