I had been noticing a foul oder and brown discharge and wasn t sure what it was. I have an IUD and went to check it with my finger and found that there was a tampon that had been left in there. I have no idea how long it was in there and was wondering if I need to go see a doctor. I haven t had a fever or muscle aches, no rash, or flaking skin. I did have a little bit of cramping, but it was only for around an hour maybe. I don t think any of it seems like TSS, but I wanted to make sure.