Hi mama! Congrats sa first pregnancy mo! Those vibrations you're feeling could be normal pregnancy stuff, gas, digestion, or even your muscles adjusting to the changes, but honestly with the PCOS at ang irregular appetite mo, definitely bring this up sa OB mo next visit or call ahead kasi sila lang ang makaka-reassure sa inyo properly, lalo na at first time mom ka pa. A few of us here had weird sensations early on na naging normal lang, pero it's always better to check in especially kung worried ka talaga, kasi peace of mind is everything when you're carrying your baby. Get proper rest din mama, and try to eat smaller meals throughout the day kahit minsan walang appetite, helps stabilize ang blood sugar mo which is extra important with PCOS. You've got this!