why does my stomach gurgle at night?

[Merlady67]

I'm awake again in the middle of the night from the loud bangs and gurgles of my stomach. I just am at wits end. I had something like this five months ago but wasn't as bad. It's been 2 weeks now that everything I eat makes me sick but then it stops n I am fine and then 2 hours later it's back. I'm also having a lot of stress over it n that makes it worse. I sometimes have pains under my left breast but if I pass some gas it softens. I saw a gastroologist but he wants me to have an endoscopy n a colonoscopy but my insurance won't pay so I'm unsure what to do. I had kidney stones back 5 months ago n wondering if it's also that again. Does anyone have any ideas what this could be? I have tons of nerves over this, also my stomach is constantly bloated and I feel like I had bags of sugar where I can't relax..