Upper abdominal burning sensation

S • Married since October 5, 2013. Baby girl born July 20, 2015🎀
I'm 33 weeks on Sunday, and the last few weeks I have a feeling of a burning sensation, not like heartburn, but almost feels like a sunburn under my bra. I thought it was my bra too tight but that didn't resolve it. It almost feels numb to the touch too. Has anyone else experienced this or know what it is?