Fire hydrant and blood for the right example of cerise .
Both diabetes and prostate cancer jumped into my mind.
Check the tires and tubes again. I had a tube tear free from the valve stem one time (rear). Not really noticeable at low speed, felt like repeated kicks in the butt on the highway. Tube was all wadded up opposite the valve stem, major unbalance.
Check the tire PSI If the tires are overfilled with air, they will bounce over a bump in the road.
