Am I definitely going to lose my hair
You survived what you thought would kill you. Now straighten your crown and go forward like the Queen you are!
If you do a search on this site for "hair loss" you will find hundreds of posts on this subject...and everyone is all over the place on what they experience. Most people experience SOME hair loss. Very few people are blessed to not notice any loss. Then there's people like me who are 9 months out and still shedding significant amounts of hair. And I did everything I was "supposed" to as far as protein, supplements, shampoos, scalp massage, etc.
My advice...don't waste ANY of your money on this extra stuff. If you're going to lose hair, nothing will stop it. You need to focus on getting proper nutrition, exercise and sleep. The hair thing will take care of itself.
This one fact alone stood between me and my surgery for 3 months.... I was like no way!
I can report back 6 mos post op that I have not had anything significant. Outside of calcium citrate and vitamins, I am up to 80g+ protein per day.
Good luck to you.... don't feel like you are alone on this journey!