Aww mama, yan talaga ang pregnancy struggles! Yung feeling na kailangan mo ng both but walang output is SO frustrating, a few of us went through that around mid-pregnancy kaya alam ko gaano ka-confusing, lalo na with all the weird sensations. The feet tingling could be from pressure or circulation stuff, but honestly mama, best talkin' this one through with your OB at your next checkup kasi may maraming factors na need i-check, like how much you're drinking, your diet, and kung normal lang talaga for you or something else. In the meantime, try staying hydrated talaga and maybe adjust your sleeping position? But really, don't stress yourself with Dr. Google pa lang, your doctor na lang magsasabi what's normal for your specific pregnancy. You're doing great at 20 weeks!