yes that flap of skin is bad, it's scar tissue.
DOWNSIZE now atleast 2 sizes...or take the jewelery out for a few days and let it shrink as much as it can, and then when you find the size it stops shrinking at, your in for intensive treatment.
Oil and massage your septum with emu oil, or jojoba (emu works better for this) TWICE a day. You'll notice it starting to disappear in a week. Once all the scar tissue is all gone, then you can slowly stretch back up.
happened to me, and I let my septum self stretch from 14-6g but still got that "flap"of scar tissue, (at the beggining of this month) I left it naked for 4 days it shrank down to a loose 10g, and then oiled and massaged the hell out of it twice a day for about 2 weeks and it was gone, I'm now back up to 8g, and patiently waiting for it to loosen up back to 6, continuing with oiling and massages once a day