What's going on with AF??!

Hi ...

So my last proper period was 30th may until 1st June which is normal for me I only ever get 3days . Then on 30th June I only bled for one day and was only noticble when wiping (sorry tmi) I though it was AF but nothing more came of it so I assumed I just had a super light bleed?? Then 16 days later on 16th of july I started to bleed again light at first but then much heavier than normal . Never normally would fill a pad sorry again tmi. Just seems odd . Should I see a gp ? Has anyone else expeirenced anything similar?