Just over a month ago I noticed a hard lump, maybe about the size of a bracelet bead, behind my left ear. Since then it has grown to the size of a blueberry. 

I have also found a small hard lump on the left side of the base of my skull, under my chin and on each side of my groin. I only noticed these in the last week or so but I dont know how long they've been there. The one on the base of my skull has doubled in size since I found it, and so has the one on the right side of my groin.

I have been trying to avoid asking doctor google what is wrong with me and I will have blood taken for testing in the coming days. 

I am just very worried and I'm wondering if anyone who has gone through a similar situation has any advice?

Thanks,

C