Royal been there, done that and got the T-Shirt.
You will feel much better once you have a diagnosis, it is the not knowing and the imagining the worst case scenario that is the worst thing for you at the moment. I can remember that feeling, but once I had my diagnosis and an explanation of what would happen next, it became much easier.
You must remember, you may not have BC, but I have to admit, it does seem likely. Consultants see lumps every day and I think they do know. I say that not to frighten you, but simply because everyone kept telling me it would probably turn out to be a cyst or something 'simple' so much, that it almost came as a shock when I got the diagnosis.
If you do have BC, you now need to understand that advances in research mean it is not the killer it once was. There are so many treatments now. I had chemo, radiotherapy and full mastectomy, but my friends have had a lumpectomy and chemo only.
If you are diagnosed, the regime of hospital visits, treatment plans etc., actually give you something to focus on. Strange, but true, it gets easier, because you have an end goal to aim for. With me, it was surgery, then chemo, then rads, then reconstruction and every time I had a treatment, I was one step closer to getting my life back.
It is not easy, but it is doable, and you will get through it.
I am sorry, I am a very practical person, not a huggy one, so emotionally, I am useless to you, but I am here, pm me if you like and I will do everything to support you on your journey.
Take care.