Have you started your taper yet from 8mgs of sub?
"I should be feeling good about myself trying to be healthy and 57 days with no opiates.."
The Buprenorphine in Suboxone is a semi-synthetic opiate.
Are you sure you're not retaining fluids? I lost 7lbs water weight in 3 days after the first big drop I made in dosage when I was tapering off Suboxone.
Ask your SO or somebody if your hands or feet look swelled, if you can't tell.