27 weeks pregnant and whew!!?

lastnight i woke up with some super painful backpain, it felt as if my spine was completely shattered...i turned to move, and then my abdomen started hurting, i layed there for a few minutes and did some relaxation breathing, and got up to get something to eat and drink, sitting down my belly continued to hurt, and my belly still hurt after i had eaten. this morning i woke up and my belly still hurt, my left rib was hurting also, i layed there once again did some relaxation breathing, got up to get something to eat and drink, and then i felt better, until i got a little sleepy and decided to take a nap, i woke up with excruciating heartburn, and i have cramps in and around my pubic bone, my baby has been moving constantly throughout the day, but i feel so awful...is this just part of the last of the ride, or should i be concerned?