i would say it s one of few symptoms you can have when you leave analogs ...also gumbleeding is very common, normal and not a reason to panic
i stoped analog within 3 days after 25 years of analogs ...around 30-35 a day
to stop analogs i had E-liquid 16 mg menthol and it was enough ...very fast i gone down to 12 still menthol as it gives a hit and freshness, it s for me the best for a good start !!
then i gone DIY liquids on more sweet aromas with 5% of wodka and 60PG 40 VG base @ 12mg
all this to tell that yes if You are @ more than 12 i would recommand to go down on nic and if You miss hit ..try to go menthol
