Has anyone ever gotten pregnancy symptoms and paranoia at the same time... then turns out isn’t pregnant? Help! :(

Had sex, he wore condom and didn’t came inside of me because he pulled it out.

Ever since I scared myself that I am pregnant but knowing that I am not, I’ve been experiencing symptoms such as:

I got sick (runny nose and coughing)

Tired and sleepy

Lower back pain near my tail bone

Bloating

I am in so much stress that I lost my appetite.

Am I overthinking?