Is she stretching?! 36+2

Am

So for the past week I keep having a strange sensation which almost takes my breath away.

I know that she is head down and has been for about 3 weeks. But a few times a day the left side of my stomach bulges out and a smaller lump comes up on the right, and it really makes me feel weird. I have to almost breath through it. It only lasts a few moments maybe 30 seconds ish.

I only thought this evening that maybe she’s stretching her legs out? Does anyone else experience this and if so, what do you think it is?