I am gaining weight too quickly when I eat milk potato or rice and my body is swelling (fingers leg etc are swelling) and sometimes swelling is gone and my stool is very hard and I have constipation issue and I have hair fall issue also and every day after work in evening I feel weak and like fever and 2-3 month ago I checked my thyroid and it's shows normal. What should I do should I do my full body checkup.