Self flogging while riding in the drops which maybe deserved due to overeating

is not a recommended practice. You are likely a combination of flexible guy with a spare tire and why you have this predicament. By contrast, my joints freeze up before I self flog myself in the drops. I am not uber flexible but am a flat belly. We each have to find our happy medium. So until you lose some weight either continue to beat yourself in the drops

or raise your handlebar slightly until you drop some weight.