It sounds pretty broad, but I would say so, but it should be something easy to fix by diet or some other adjustments. Are you still early on in your pregnancy? Pregnancy takes a LOT out of you, literally. You have to think "I'm living for two now". With my first pregnancy, I went to work on the sales floor all day and only had one 12 oz. bottle of water all day long [this was also during 100+ degree weather in Arizona]. When I was making dinner that night, I blacked out for the first time in my life. Sometimes I'd get headaches or leg cramps that I'd never had before.My OB said: Water, water, water, WATER!!!!! If you're normally not a big water drinker, get used to it, because it will only help you in the long run. Tea/soda isn't hydrating whatsoever and has way too much sugar (one can of cola has the equivalent of 12 tablespoons-would you eat all that!?!). Gatorade/Powerade is also good, especially for the days you're feeling extra thirsty... the electrolytes will help balance you out on the inside. They also have the lower calorie Gatorade/Powerade- genius!!!