Low grade fever 99-99.5 and virus twice in one month. Slightly low iron levels. Terrified of lymphoma?! No other symptoms except anxiety.

Get more information. knowledge is power. You need to see your primary care doctor and get the proper tests regarding the lymphoma. As for the anxiety if you have anxiety that is of long duration and centers on health concerns or others you may need to see a psychologist for therapy and or consider medication. Basically you need an evaluation to allay your medical fears and go from there.