Me and my fella was doing foreplay last night when suddenly he felt something inside me. He pulled it out and I discovered it was the applicator of the tampon I used. It must have been up there for a couple of days I am worried now I might get TSS.

The applicator was inside you for a few days! I don't understand how you did not feel it nor how it got inside you.

Go to the doctor and get checked out.

Definitely see your doctor! I'm not worried about TSS so much as I am worried about an infection, tearing, and other such unpleasantries.