most of mine had swollen nodes, big knots too. but i think that happens the more u let them grow, i had the same problem i let mine veg for almost 10 weeks waiting for sex to show and nothing. a week after i set it to 12/12 they showed so who knows i did'nt lst but i tied string around the tops where there was still space, and tied a coke bottle on the other end, and pulled the colas over to hang down and added water as needed to the bottle to weigh it down. the result all the lil branches at the bottom caught up to the tops and the tops that were tied and hanging over grew back up so i added a ft of grow with out takeing up away upward space and also by doing that the sides of the top colas got more light and the buds grew towards the light like lil trees