Back pain can be debilitating and life altering. It can affect your ability to move, sleep and even think. There are many causes of back pain, but remember that pain levels are not always positively correlated with the degree of seriousness. In other words, minor issues (such as an irritated nerve) can sometimes generate severe short-term pain, whereas life-threatening issues (such as a tumor) sometimes lead to minimal pain.  Try some common-sense home remedies and be aware of the signs and symptoms that warrant a trip to the doctor's office.
Luckily we do have a very small bottle of peppermint oil (.125oz) we got when our kids had a lice problem from school. Not much left but I put a few drops on a few cotton balls and set them in the base cabinet where they seem to be coming from. The main drain pipe from the sink goes straight down through our concrete slab and I’m sure they’re coming in from there but I’m not sure from where on the outside. Too much snow here to even check. Hoping the oil and the cleaning makes them move out soon. We’re going to have guests next week.