Losing weight at 29 weeks

Hi ladies. This is a topic left for 2019 with hopefully a good outcome for 2020. I’m 29 weeks and loosing weight not gaining. Super scared and worried. Going to see DR this end of week. But was wondering if anyone experience this and what they told you. I’m not eating because I can’t. I feel super full and out of breath as I eat. With the weight of my huge boobs and this baby I’m. It sure what to think of it.

I try and eat often but I can’t a lot. I feel terrible.

I’ve only gained like 12 lbs and I was normal weight to begin with. This did not happen with my first pregnancy only now with this second baby boy kicking my butt. Any help ladies!!!