Spotting blood after 5 months of all clear

Hi, just a bit worried as this week iv startedbleeding but it's only been 2 weeks since my last period and they've always been spot on. It's been 5 months since I got the all clear from 1a1 grade Cc and have got my follow up check in September. Wondering whether it's worth getting the bleeding checked out or just to wait? 

If it's bothering you, get it checked out :-) There is no point suffering in silence if something is worrrying you.
Be lucky :-)