<s>[INST] Hi, im a 20 year old female. A couple od months ago i went to the hospital for feeling dizzy, off balance and especially feelibg foggy headed. The dizziness at firt was very extreme, and it lasted for 24 hours a day for a whole week. Two weeks later, it started again but it wasnt as bad as the first time. They did a.ct scan and a bunch od blood tests, they all came out negative but unfortunately it still continues... i work at a supermarket and the lights and noise seem to trigger it more! I am currently in univeraity and i find it very difficult concentrating! The foggy feeling ia always there, i cannot keep up a full converstion with somebody, i get distracted with my other thoughts, its like daydreaming which never ends. Its.really fruatrating!! Pls help! [/INST] Howell come to ChatDoctorI really appreciate your concern, if the investigations reports are normal then the reason behind the dizziness could be due to vestibular dysfunction, wax impaction in ear also need to be ruled out, viral infection may be the cause, and last but not least it could be functional in origin, it can be managed with "Tab Bitahistine 8 mg" three times in day, hope this information helps, take care and have a nice day. </s>