So here is the deal. I have had a HORRIBLE smell in my bathroom now for about 2 weeks. It started as just a slight smell but has gradually increased to a horrible one that causes me to gag.
I have a couple of ideas on what it could be:
1. We had our septic pumped about 3 weeks ago. This smell started shortly after, so I wondering if it could have something to do with it.
2. We had a hurt cat wondering around our property, I thought she might be dead under the house. My BF said he stuck his head in the crawl and it's didn't smell. Is it possible that she is dead, right under our bathroom, and smell is just isolated in this one spot? Also, how long would it take for the carcass to decompose and the smell to be gone? Like I said it's been about 3 weeks.
3. My BF and Landlord think we have mold growing behind our shower wall. But I don't really smell a "moldy" smell. It's more like vinegary, garlicy, groseness.
Any thoughts? Any input would be greatly appreciated. Thanks!

I had a lot of thoughts right up to when I read landlord. This is his problem to cure, not yours. Demand he fix it since sewer gas can be harmful. If HE is at a lost HE can hire a plumber who will likely find the wax toilet bowl ring is shot.