Suggest Treatment For Severe Painful Cramps In Foot

Hi, I am 44yo healthy female. The last few nights I have been experiencing severe toe/foot cramps. I haven't changed my diet, shoes, or exercise habits. It is painful and annoying. I don't know what I should try. My husband suggested drinking his cum, but I think that was more for his benefit than mine... Seriously, this is very painful and is driving me crazy. Please help!