Talk to Dermatologist on Sever Hair Fall Issue

Assalamualaikum mam mjhe pichle 6 months se bohot he ziyada hair fall horha he mjhe vitamin ki kami he jis ki wja se me osinat d tablet bhi leti hu iske ilawa shampoo bhi medicated jenpharm ka use krti hu iske bawajood Mera hair fall nai ruk rha me kia kru mjhe please guide kre shampoo ho ya koi medicine ho din badin hair bohot patle horhe he sometimes roots se he bal girte he comb krte hue or sometimes bech mese tutte he mene Apne hairs me koi chemical treatment nai krwaya hua please reply and look upon my problem I will be very thankful to you!!!