Hello, as I can see that your main concern right now is that you are having excessive hairfall after using minoxidil 5%. I want to assure you that do not worry , it is an indicator that minoxidil is working for you. In simple words , when you use minoxidil and it starts acting on your hair roots, hair fall happens. Because the new hair that are forming need some space to come out and they remove your previous hair which may not be that healthy and come out . So do not worry
Next Steps
you need to continue minoxidil , your hairfall will slowly stabilize after after 6-8 weeks of usage of minoxidil.
if still in doubt , consult a dermatologist, they will explain you in detail and if anything else has to be added , they will help you do it