i see three nodes that look like they are stacked on top of each other... give it a bit less light.. raise it 4" or so. soo how it reacts.
if it's been too long already, it may have been stunted a bit. it may also want more light after it recovers and matures a bit.. it also might flower early due to the stress.. time will tell.
once it gets out of its funk, keep eye on new internod lengths (distance between 2 growth nodes)... use this as guid for light intensity... no stretch at all is just as bad as too much stretch, if not worse as it can stunt the plant.