Anyone know if it's okay to drink tonic water in pregnancy? restless legs are killing me and I know…

Anyone know if it's okay to drink tonic water in pregnancy? restless legs are killing me and I know tonic water usually helps with that. but I'm wondering if it's okay to drink it while pregnant. I can't do another night of having to sleep sitting straight up with a pillow fort around and under my legs, again!

my legs get so bad it puts me in tears and the numbness starts to feel like a needle penetrating the sides of my thighs. like...i just can't anymore