I've had that occur on and off for years. I always feel like some club footed clown as I walk from the bike to the house.
I've been plagued with both arms and legs susceptible to pinched nerves, a results in parts from the heavy manual labor I did as a youth and the popeye like forearms and thighs I developed. When I go through periods of weight gain, it flairs up. The proverbial 10 lbs of crap in a 5 lb sack. For added enjoyment, I also get massive cramps in the muscle group in the back of my thigh.
Adjusting your saddle a bit could help. For me, once I shagged some weight off, the problem diminsihed in frequency.
This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.