Oo yan normal lang yan sis, ako rin 22 weeks ako nag-experience nito especially pag nakaupo ng matagal or tired ako! A few of us tried doing gentle stretches or shifting positions every hour, and it really helped reduce the tightness kaya try mo rin. Just make sure you're drinking lots of water and not overexerting yourself, pag mas madalas pa siya or may sakit na kasama, better check with your OB na lang para peace of mind, yan na safest approach talaga pag buntis. Congrats sa pregnancy mo, mama!