I have recently started to have pain in both of my arms from my shoulder all the way to the wrist and sometimes in my right knee as well.

I have not had these pains before so they are quite a concern.They have been coming and going now for about a week.

I'm not on any medication. I work in childcare but no one else there is experiencing these issues. I'm not a drinker/smoker. I don't do drugs and other then being slightly overweight I am usually considered pretty healthy.

What could be causing this pain and should I rush to a dr right away or wait?