I Got Up From Sitting A While. At First I

I got up from sitting a while. At first I was walking OK, but the longer I walked the more my leg muscle seemed to give way, there is tingling & numbness. My husband held me while I continued to try to walk it off and it seems better now, but I am still wondering is this could be something to be concerned about. I have had cramps, but they didn't come on like this.