Yay, ganyan talaga usually sa third trimester, mama! The weight ng baby and hormones (relaxin) are loosening your ligaments, so hindi ka nag-iisa dito, a few of us felt the same intense singit and lower back pain around this time, kaya normal lang yan. Best to check in with your OB though para ma-rule out anything else and para may specific guidance siya for your case, pero in the meantime, puwede ka mag-try ng prenatal massage, pelvic support belt, or even warm compress to help with the discomfort. Kaya mo yan, mama, almost there na!