My legs are getting cramps at night while sleeping and also when I wake up. Sometimes I feel heaviness while walking. I am not sure whether it is really there or just my doubt. There is no swelling in my legs. I work in a bank, so I sit for long hours. I have a mild spondylosis issue. I was going to the gym until December, but I stopped due to time constraints. Last month, I had a fever due to a urinary infection. Kindly Guide.