Hey mama, normal lang ang slight discomfort at heaviness around this time because ang baby and uterus mo lumalaki talaga, pero ang "parang hindi natunewan" feeling and ang tight sensation sa bawat galaw mo ay worth checking with your OB na para sure lang! A few of us moms noticed similar things sa 7 months, and iba-iba talaga, some had gas, some had ligament stretching, pero better safe than sorry kaya go consult na lang. Hugs, you're almost there!