That's a super low dose! (The lowest it comes in actually I believe)...

I've been on 800mg of Seroquel daily before! But I have also been given 25mg tablets to use instead of a benzo for anxiety because it works just as well if I catch it quickly enough.

These side effects should go away, and honestly, at such a low dose, I wouldn't worry about weight gain. I never gained weight on Seroquel during the 2 years I was on it, at doses much higher than yours (my lowest dose was 200mg daily), and it didn't make me any hungrier than normal.

I too have struggled with an ED and scale addiction, and here's my biggest piece of advice: throw out your scale! Don't even have one in the house. Just get rid of it, even if it's a nice one, even if you say you'll only weigh yourself once a week...no matter what, having a scale in your house is a bad idea. If you can't bear to throw it out, give it to someone, even your T or pdoc if you have no one else to give it to. It's not an easy thing to do, but it's an important one.