The breast clinic may not want to see me?

Hi all, I just want to vent about something & hope people can understand why I'm feeling the way I am. I'm pretty upset. Also some advice/thoughts would be appreciated.

Last week Tues 24 March (it's now Mon 30 March) I saw a doctor at my GP surgery about a pain that I have in my left breast, no lump. I've had it for some time now & it does seem to be getting worse more recently. I'm in my 30s & no family history of breast cancer that I know of. After taking some information down and checking me over, the doctor said that she would put through a request for me to be seen at a clinic, but that they might decide that they're not going to see me. Apparently they might decide that it 'sounds' like a general breast pain without anything sinister going on. She went on to tell me about mastalgia.

Now, I'm pretty open to the idea that my breast pain is more likely something non-cancerous like mastalgia than it being cancer, but what I can't understand is how the clinic could receive the referral and just decide this based on what they're reading on paper, rather than seeing me and doing a proper examination. Surely the only way to know for sure whether cancer can be ruled out to actually have me in the clinic and check me out?

So, in the space of a few days I've become so upset at the thought that the clinic will just decide that I don't have cancer without having me in to properly check. I'm in absolute bits, because I'm worried about my referral getting knocked back & it turns out it was cancer all along and there was a missed opportunity to diagnose it earlier. This is now the thought that's going through my head.

In the 2 weeks leading up to my appointment at GP I was feeling optimistic that I'll get referred, I'll get checked, and likely it will turn out nothing. Instead I've been sitting here the last few days completely broken at the idea that they might not want to at least have me in to check properly.

If anyone has advice, especially if they've been through this kind of thing themselves, please get in touch. I keep hoping that the doctor just said something careless and that the clinic would definitely like to see me. I'd hope they would like to see anyone with what's possibly a symptom of breast cancer. Thanks