Hello....Hope this helps.
Hairfall can be due to multiple reasons like stress, nutritional deficiencies, any hormonal problems, genetic or any external scalp issues which need to be examined and seen what are relevant for you.
Would advise to see a Dermatologist & Trichologist for proper thorough evaluation.
Till then suggest to use pH balanced shampoo for hairwash, avoid heat or chemical treatments on hair and balanced nutritious diet
Dr. Vaishalee Kirane