I found a lump on my neck last week and thought nothing of it, until I realised it hasn't gone away and I asked my friend to check it and she confirmed it wasn't normal. After some Googling I figured out that it's a swollen lymph node but it's hard and won't move. It doesn't cause me pain it just aches.

I'm only 20 and used to be a young carer for my grandma who died of cancer when I was younger, so I think I have a lot of anxiety about having cancer- but I don't think I'm overthinking this. 
 

I've also had a very bad appetite for the last couple of weeks which is unusual for me and I feel over tired constantly. I also have had a cough for a good few months now but I had (what I think was) a chest infection in September and so I put it down to that. 
 

Now when I'm googling I'm realising I'm fitting the signs of lymphoma and it's really scaring me. I haven't told my partner or family that I'm worrying about it being cancer because I don't want to scare them unnecessarily but because of that I have nobody to talk to about how scared I am.

I tried to get an appointment for the doctors today but they were all full up so I couldn't get one and I barely have any time the rest of this week and so I'm worried that I'm going to be worrying about it for a long time when I've got work I need to do. 
 

Can anyone reassure me or does anyone have experience of this?