I got out of an eating disorder program about 2 weeks ago. I gained 25 pounds in 4 weeks. But now for the past week I have been experiencing high resting heart rate, fatiuge/dizziness, extremely dried out hands and im always feeling really hot. I know for sure I can rule out dehydration bc I drink about a gallon a day and my pee is pale yellow/ almost clear. I also eat very healthy, whole wheat, veggies, fruit, sweet potatoes, fish, nuts, peanut butter..so what could be wrong. Was that too much weight to gain in 4 weeks? Any ideas