Mommy, I love that you're reaching out, pero seryoso, please see your OB today o bukas pa lang, ha? You're at 37 weeks and these sensations deserve a proper check from your doctor, especially na may pain pa involved.
A few of us moms have been through similar feelings near the end, but kailangan talaga ng professional to make sure everything's okay with baby and you. Hindi ito something to worry about alone, your OB will give you the real answer in minutes lang.
You're so close na! Pero go have it checked, okurrr? Let me know how it goes.