Does anyone else ever have pregnancy symptoms even when it's impossible you could be pregnant?! I…

Does anyone else ever have pregnancy symptoms even when it's impossible you could be pregnant?! I swear I'm having all the feelings I had when I was pregnant with my son! Leg cramps, extreme anxiety, tender breasts, fatigue, insomnia, extreme hunger.... but I'm on my period! So many things about my body have changed since I had him!