<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have a loss of appetite,when I do eat it is extremely small portions, lack of good sleep due to my husband snoring, some muscle pain without any strenuous activity constant back pain usually I blame arthritis I can t wear any clothes tight at the waist without back pain,  <response>: Hi. Its quite possibly due to arthritis plus the fact that u dont sleep well may make u tired in the morning, irritable and cause loss of appetite suggest 1 tablet of Muscle relaxant e.g. Flexion every day at night just before bed. Start off with 500 mg 3-4 times a day and then taper to 250 mg after 2 weeks. Max dosage allowed is 750 mg 3-4 times a displease make sure u dont have liver disease or porphyria before taking the medication 