Regaining all the weight I lost and I can’t stop

Can you go to a doctor?

Just to be sure, no offense intended, could you be pregnant?

The other thing I’m wondering about is diabetes.

So a doctor is the way to go.

While you’re getting that sorted, double check your calorie accuracy, a really accurate food diary and daily weights at the same time each day, and an activity log will help your doctor figure out what’s going on.