Breast clinic wait and anxiety

Found a void in my breast a few weeks ago. made mistake of searching online and finding nothing so left it for a while. last Friday finally contacted GP and booked a ring back for Monday. Spent weekend in state of panic. Detailed discussion on ring back and saw GP Monday afternoon. GP also found a lump so referred to breast clinic and told wait would be up to 14 days. Spent next 3 days crying, feeling sick, not sleeping and generally imagining the worst case scenario. Not had a letter yet but phoned GP and my appointment is June 29th. My husband said that we couldn't cope with this for 14 days! Talked to a breast cancer survivor and some friends and 4 days in I've now calmed down. Still anxious but realise that worrying, not sleeping etc will only make it worse. Now thinking I will deal with whatever comes when I know rather than thinking the worst. Actually slept 6 hours straight for first time in days and don't actually feel like I'm going to throw up. Keeping everything crossed and trying to keep it together. Only 10 days to go!