Ay alam ko yan, mama! At 39 weeks kasi ang uterus mo talaga napakaliit na ng space, kaya parang may pressure sa throat at nawalan ng komportable na position, nangyari din yan sa akin at sa ilang kaibigan ko during late pregnancy, sobrang frustrating talaga. Pero since may sensation ka ng blockage and you're feeling nauseous, mas okay na i-check mo ito with your OB para sure lang, lalo na malapit ka na magdeliver at gusto natin walang risk. In the meantime try propping yourself up with pillows instead of lying flat, o try the semireclining position, mas napakabuti yun sa late pregnancy anyway, at mas mahusay pa para sa baby positioning.