Hi I had gone through your question and understand your concern. See , as far as your weight gain is concerned , Prednisone can have a negative effect on metabolism. Cravings seem to be heightened so drinking water, eating fruits and vegetables can help. Sometimes fruit or vegetable smoothies can fill us up. Protein in the morning (eggs and cheese – flavored soy cheese is good) might help with cravings during the day. Keep some almonds around for to snack. Also , reducing salt intake can prevent side effects associated with fluid retention. Watching fat and calorie intake can help to prevent weight gain. Many people who are on steroids experience insomnia ,as it is one of its common side effect. Some people have found over-the-counter remedies such as aspirin, ibuprophen, diphenhydramine (Benedryl), Simply Sleep by Tylenol , or acetominophen with diphenhydramine (Tylenol PM) to be helpful. But as these are prescription medicines , you should consult your physician before taking them. I hope this information was of help. Let me know if you have any other queries. Wish you good health.