Oh ACM, me again from your other post. Please, please don't worry so much.
The clinic actually phoned me at home at 6pm on the day I'd seen the GP to say the breast clinic would see me in 7 days.
This is all so normal. The guidelines are that on referral by your GP to the breast clinic, it should be within 14 days. My GP wasn't worried about my lump either remember. I was just as paranoid as you. So being called to the clinic in that time is normal.
The breast exam, mammogram and ultrasound were all done within a couple of hours and I was told there and then the result.
I know through experience that nothing any of us can say will lessen your deep fears. I can only try to reassure you, from one paranoid person to another, that you will be absolutely fine.
If you think it will be any help try to look at the breast care website. It offers really reassuring statistics and advice. E-mail me any time if you think I can say anything else to make you feel better.
I really know how you are feeling. I was in your place last week my friend. You will be OK.