My plants ar 3-4 ft tall and are in the first week of flowering they are in 3 gallon pots and i was wondering if i should transplant them they look unhealthy curled yellowish leaves
id say you either burned your plants with too much fertilezer or more likely your plants have a nitrogen deficiancy you should water them with a strong N fertelizer like 5-1-1.
Here a link to nutrient deficiancy GROWFAQ take a look at the plants and see if you plants look like they have a similar problem.
3-4 feet?! They should be strong enough to slide out of the pots to check to see if they are root-bound and need bigger pots. With plants that old might be more than one problem too. Use process of elimination, and pics would help too.