Am I losing it?

My hair that is. :(  I don't know if it's just in my imagination or if it has begun. I've read that between the 2 and 6 month you typically start to lose your hair. My doctor has recommended that I eat 80 grams of protein a day and my daily vitamins.  That should help.  My hair stylist said that I have plenty hair to lose so it should be that bad.  Here's to hoping it's just in my head or staying on my head.