Feeling very "weird" and nauseous

So all day today I have just felt kinda "off" "weird" even and it is driving me crazy. I keep feeling like I am going to be sick, Ive eaten twice today but I cant seem to get satisfied and im scared to eat since I feel like im going to throw up. Also for the past hour I have been having contractions that hurt and occasionally take my breath. I Have also had heartburn and indegestion since last night. Now I have had kids before but with my daughter I went into labor while I was asleep and it woke me up so I knew what was going on and my with my son I was induced. It has been a long time since I have had a baby and I am just curious with everything that I am feeling is this normal? Could I be in the beginning stages of labor? Or am I just losing my mind lol?