Welcome to HCM.
Pain is most likely due to muscular involvement.
It usually occurs after improper position during continuous sitting,sleeping,working and also seen with b12,folic acid
Take nsaid to subside pain during episode.
Apply nsaid gel locally.
Start b12,folic acid,other vitamins,calcium supplements
,Take proper sleep,eat good nutritious diet.
If it persists then start medications under guidance of your family physician.