Just found out about HCL...

I have been diagnosed with IBS and feel my body is pretty infested with microbes. I have brown spots under my armpits, bad candida breath every morning, a fistula down south. These things came before I was diagnosed with IBS though, but now there's almost always chunks of undigested foods in my poop along with gas issues, always bloated, stomach making noises when laying down and very bad constipation issues. I'm pretty sure with all these problems that I have leaky gut also.

Is there a way to raise your HCL without using betaine HCL pills though? I just learned gelatinous broth can help in the healing process and possibly ACV(?). What else can I do though?