No one can give you peace. No one can even begin to diagnose you. Only in person exams, and if need be, tests can give you the answers/reassurance you need. Nor can google. Google is NOT a diagnostic tool. It's a great tool when you know what you have, but it's useless at telling you what you may or may not have.

The fact you're here, means you really, really need to go and see a gp.

Not the story you want to hear, nor am i implying this is any in shape or form representative of your own circumstances, but some lumps can only be felt when lying down. It's because the tissue moves due to gravity and positional changes.

I get you're frightened, but think about it, would you rather get told it's nothing and get on with your life or sit there and fret for weeks, even months that it could be something? Waiting doesn't change what it is or could be.  Ignoring lumps don't make them go away. On the plus side, your age is considerably in your favour, but that doesn't mean it can't be something sinister.

How long should I wait to contact them tho? I discovered it while on my period and have only been off and back on my pill for 6 days. I'm worried that might be the cause of it, and then my gp getting annoyed me 

How long should I wait to contact them tho? I discovered it while on my period and have only been off and back on my pill for 6 days. I'm worried that might be the cause of it, and then my gp getting annoyed me 

I'm not an expert, so i can't comment on temporary hormonal changes, but one thing i do know. If a gp gets annoyed at anyone turning up at their surgery with a lump or any concerning symptom, they shouldn't be a gp.

This is exactly what gps are for. Dealing with these sort of health concerns. They want to tell people their lumps are nothing. They get to carry on with their day and you get to carry on with the rest of your life.