Sinking in breast when lifting arms

I'm originally from the UK but living in Ireland at the moment. I noticed last Thursday when getting out of the shower that when I raised my arm I got a dent appear at the bottom of my left breast. 

I wasn't sure if I was seeing things so I asked my partner on Saturday if he could see it as well. When he said he could, I went in to panic mode.

Unfortunately the health care is shot in Ireland and we haven't got a GP so I had to go and see an out of house on call doctor. Luckily I was seen that afternoon (Saturday) and I was seen by a doctor and a nurse. Both got me to raise my arm and immediately said, yes you need to be seen. 

We spent the best part of Monday calling clinics in Ireland that will accept a letter from an out of hours doctors and luckily found one to be told that the wait is 6 weeks unless the nurses deem it necessary to bring you in early. 

A letter arrived yesterday asking me to go for my appointment next Thursday and now I'm not sure how to feel. Happy I don't have to wait but also scared they feel I need to be seen. I've had a right wobble today. 

How does everyone else deal with waiting. Has anyone got puckering as well?