You are suffering from hormonal changes causing Androgenetic alopecia causing hair fall. It's completely stoppable even regrowth of hair is possible with certain medications without any side effects. Treatment depends on the grade of hair loss. So, it's a must for diagnosing which grade, you are in for an effective treatment. Please  send photos of your head, by direct online consultation for accurate diagnosis and proper treatment.

Hii Severe hair loss can be telogen effluvium History of any fever? Covid? Illness? Surgery or stress Rest we need to evaluate you for certain vitamin deficiencies Any complain of hair thinning or hair line receeding ? This can be treated once we find out the cause and type of hair loss Whether its Telogen effluvium or male pattern hair loss

Take hair related multivitamin like follihair or keraglw and consult a dermatologist immediately