I Am An Older Woman, I Do Take One Blood

I am an older woman, I do take one blood pressure pill...labetalol HCL 100 mg, and effent..5mcg. a day.. could either of these create foot and sever lower leg cramps all night... this is driving me crazy..every night I walk the floor with muscles cramping on and off...all night.. need to find the reason, please and any advise on what to do to stop them...
C. Morgan