At least they’re checking it out now. Something you have to learn about GPs - they’re spread very thin and know a tiny bit about lots of different things. If you ever think they should have done something else or haven’t done enough, don’t ever be afraid to ask to see a different GP for a second opinion. They aren’t specialists about any condition and often haven’t even heard of some of them that I have! So don’t ever be afraid to push for more help if you feel you need it.