When is gas/cramping a concern?

I'm 24 weeks with my first and the past two or three days I've had gas pain and lower abdominal cramps. They're getting progressively worse. It occurs when I'm upright, and it is only relieved by reclining or laying down. I can't do dishes, laundry, cook... And I had a really hard time at work. Tonight in bed, I've had several "Charley Horse"-type calf and foot cramps. And those seem to be only relieved by standing up and stretching, which brings on the abdominal cramps 🤣🤦🏻‍♀️

Basically any bending, standing, sitting, or twisting is uncomfortable. Walking seems ok, but for short distances (think 1 or 2 minutes at a time).

Any advice?

I've been drinking a ton of water too, like easily 2L/day. I take my prenatal vitamin daily, and try to eat at least 1 banana a day!