I think I left my tampon in for too long. I forgot about it and it may have been there for up to 19 hours what do I do?!

Get it out! And then relax. It will be OK!

Is it out? Watch for fever. Please never wear a tampon for more than 4 hours, it can lead to Toxic Shock Syndrome.

Oh so true, I forgot about Toxic Shock Syndrome.