I'm 36 weeks, 2-3 days (my doctor's office says I'm a day ahead of what my app says) and every so often, I get this feeling in my abdomen as if I have just completed in "Insanity" style ab workout. I've got that burning, tense abdominal muscle sensation. It's hard to describe it's not exactly like contractions, it's more like a constant tense feeling.
Has anyone else felt this being in their 3rd trimester?