Period Cycle 2.5mnths long??


Hey guys, I’ve been having my period for 7 years or so (19 now) and I’ve never had a regular cycle. However, is it normal for it to fluctuate between 6 weeks and 2.5 months between periods?? It wasn’t like that the first 5 years or so. My GP said it doesn’t matter, but I’m still a little iffy about it 😐