Almost 6 weeks post partum

Alright ladies I need help! I will be 6 weeks post partum on Tuesday. Today I woke up not feeling the greatest but just thought it was a lack of sleep. It was pain/cramping and felt like a rubber band was squeezing around my upper abdomen and back.. I decided that I was gonna have my mom watch my baby for he afternoon so I could rest. I was throwing up, had chills so bad. When I woke up the pain was gone in upper abdomen and went to my lower backs/hips and it’s so painful to walk. I woke up thinking I felt better, but I didn’t. Still having chills and still vomiting so I took my temp 101.7. Should I be concerned and ring the hospital or am I close enough to the 6 weeks that they aren’t gonna be to concerned about it.