Why Has My Sweat Smelled Like Burnt Rubber For Several Months Now?

Hi please help. For several months my sweat smells like burnt rubber. Lately my stool also smells like burnt rubber. I take thyroid medication for hypo/low thyroid, I m also on antidepressants as well as buspar/busparone. Others have noticed burnt rubber snell of my sweat. Please help. I suspect maybe the buspar is causing it. Thank you.