By a honey bee on my toe and today i've had severe diarrhea and nausea. might these stings cause the sickness?

Stings : Anything is possible sounds like you should see either your family doctor for a check up or see an infectious disease doctor just like with lymes and other insect bites all types of organisims can be transmitted. It may also just be coincidence.

Possibly: Normal sting symptoms may include pain, itching, swelling, redness ; tenderness of the affected area. Milder allergic reactions: swelling of > 4 inches (baseball), nausea, GI cramps, diarrhea. Severe allergic reactions may present with swelling of tongue, mouth, lips or throat; difficulty swallowing ; breathing, wheezing, tightness of the chest, hives, generalized weakness, confusion ; slurring.