water in fuel

i bought gas the other day and i took off to go some where and my jeep jerked like it was going to quit on me but it didnt. it has done that same thing 1 time since then. then today i went somewhere i turned it off i was out of it for about 15 minutes i got back in it and i cranked and cranked on it it didnt want to start and then i cranked it again and it did start. people says i got water in my gas because they got gas at the same place and there cars were acting up. sometimes i can smell gas in my jeep i was wondering if thats what it could be? because it didnt start doing that untill i bought the gas? and if you think it might be how do i get the water out? ihave put 2 bottles of gas treatment in my jeep. 1995 jeep cherokee laredo. 62;000 miles v6