hi, im 15 year old female, and i'm sort of going through a similar thing at the moment. i noticed a lump in my neck in may and since then several others had appeared. 

i went to the gp who said they were swollen lymph nodes, and i was also sent for a blood test with an urgent referral to haematology. 

my blood results came back within 2 working days, and everything seemed perfectly within range, which made my doctor not concerned at all, and my urgent referral was downgraded to an 11 month waitlist. 

i know it's hard not to worry, because i was worrying a lot (and still am a little bit), but everything will okay. 

let us know how things are and i know i'm a few years younger than you, but you can always message me if you want to. 

lost of love and wishing you the best xx

- T