I don't know if to call this "the uterus stretching" or "ligament stretch" but I've experienced 3 times the feeling of a scratch without pain inside my belly or something similar as a painless rip of something inside. After I feel the pain, I feel an automatic chill factor on top of where I felt the weird feeling. This happened once when I moved from my right side to the left when I was laying down and another one when I sneezed 30 minutes after the 1st one. The tired time I felt it when I was trying to get up from bed one day last week. Baby is fine as I can feel her move around all the time and responds to daddy's voice. I just want to know if this is normal and if anyone had experienced this before? What is this called?

P.s. this feels very different to the round ligament stretch/pain