Hai marla

I have internal itching in my body, even after rubbing hard on skin it doesn’t go away..what might be causing it?

I thought I might be acidic now I feel I have low stomach acid because I’m unable to drink water even after 1 hour of my meal and if I drink I feel heart burn and burning in stomach. what’s your thoughts on that? what could be the issue? does supplementing with betaine hcl help? does low stomach acid alter ph?

thanks