What is everyone's experience with weight gain on Prozac?

I am about to start 10 mg of Prozac for the first time ever but I keep hearing things about weight gain. I have struggled with my body image for my entire life and now I am so scared to start it. For context, I will be taking it for generalized anxiety and suspecting OCD. Previously, when I would have any intense emotion, I would turn to food to make me feel better. Only recently, since starting birth control again and taking spironolactone, I found my appetite has decreased and I finally have an OK relationship with food. I have lost some weight and bloating and for the first time in yeeeeaaaarrrs I feel good about myself. But now I am SO scared to gain weight once I start Prozac.

I also want to point out, I am at the point in my life where I know every body is beautiful and I should be confident in what I look like no matter what. I think the reason I am scared to gain weight is because I don't want to return to my negative and degrading thoughts about myself again.

Anyway, what is everyone's experience on it? Obviously everyone body is different and will react differently with the medication, but I am curious if the people who have been gaining weight were very small previously. I am currently around 178 pounds and 5"4'.