Aches and diarrhea, do I have mono?

Not likely. Mononucleosis can give you fever, fatigue, swollen glands and a terrible sore throat but seldom causes diarrhea.
Probably no. Although mono can cause a wide variety of symptoms, diarrhea is not usually one of them. Any systemic viral illness can give you body and joint aches, including those viruses that cause gastroenteritis, which is most likely what is present in your case.

Related Questions

I have mono. How long does diarrhea last with mono?

Infectious Mono. This disease, caused by the epstein barr virus, does not usually produce diarrhea as one of the classic symptoms. See a doctor and find out what is really going on. Good luck. Read more...

I think I might have mono I am very tired all the time and I don't do anything to intense and my throat is constantly sore. Is there something I can do?

Need to be seen. The most important thing to rule out is acute HIV infection. This does sound like infectious mononucleosis (epstein-barr), but it can also be toxoplasmosis, cytomegalovirus, or a couple of less-common entities. Some physicians use glucocorticoids to abort the fatigue of infectious mono; others are concerned that this is too risky. But getting diagnosed should be easy. Good luck. Read more...
Get medical check up. Mononucleosis presents with swollen tonsils that may have white to yellow exudates, skin rash, enlarged lymph nodes on the front & back of your neck and enlarged spleen &/or liver. Your white blood cell will be elevated. A monospot test will show - or + for mono & antibody titers can distinguish btwn old vs new infection. Read more...