I am having sporadic days of muscle aches, in my back mostly, loss of appetite, about 8 pounds of weight loss off of 194 to start over 3 or 4 months. I never really seem hungry. I find my teeth clenched a lot. Sharp head pains coming and going. Occasionally I get a chill and my temp is maybe 98.8 (my normal temp is way under 98.6). I recently have been trying to go off lexapro and I have been using small does of viagra almost daily.