NHS (UK) advice on stroke diagnosis from the UK (free).
F - is your face drooping on one side?
A- is lifting both arms above your head difficult?
S- Speech Is your speech slurred?
T -If, in any number or all of the above answers is positive , TELEPHONE the ER

Remember the acronym F.A.S.T. because speed is essential.

You will know the answer to your original questions by now .
Please tell us how you got on?

Get to a DR or ER quickey

Sounds like an infection, if it is or if it is not, see a doctor and antibiotics should quickly sort it out, and if it is something more serious they will tell you.

You might consider getting a physician's opinion instead of ours. That doesn't sound good.