Bruising on breast and slight numbness on my back 3 days after lipoma removal from side (Photo)

3 days ago I had a lympoma removed from my left hand side next to my breast. What was thought to be a 5 mins op took over an hour as it was bigger than first thought ( about 7cm by 7cm) plus it was in between muscle. Under a local anesthetic which had to be topped up throughout. I have some bruising today on my breast and have some numbness on the other side of the area since the operation, should I worry?