Howdy...I had 2 bad colds towards the end of the program. I know one was fake, but I think the other was real. The fake one hit me like a bad fever with aches, chills, headache. However, I started to suspect things when by day 2 I had no stuffy noise or sore throat. Nearly every cold I've ever had starts with a scratchy, then sore throat. After the 2nd day of aches and feeling feverish, it disappeared.
Remember, colds, infections, the flu, they all have patterns. They usually take a few days or a week tops. If it keeps lingering, it is probably TMS. Although it's always good to have a Dr. clear you. See if your symptoms make sense based on how you normally feel when you have a cold etc. The brain can definitely create those symptoms. My really bad version of TMS started with Mono. My brain just kept the symptoms going after the infection resolved. It was quite convincing.
Try not to worry...if it's real, you should be better quickly. If it's not real, then there's nothing to worry about.