Gas issues

So I have been having more pains in my stomach and I have to say I know it is because I am constipated. But on top of that I also have noticed that I feel more gas bubbles and am having a harder time passing gas. Is this normal? I am drinking tons of water and making sure not to eat big meals...is there anything else I can do to help ease the pain? My stomach is bothering me and as nasty as it sounds I really want to pass some gas and relieve some pressure!!