Lumps on my legs and cancer

I was diagnosed with breast cancer in November and have gone through lumpectomy. Results showed clear lump and micrometesis in syntinel node biopsy. I am now due for a CT and bone scan for futher investigation before auxillary node clearance.

I have for the last couple of years had little bumps on my legs and after GP visit I was told these are fatty tissue lumps and not to worry about it. Due to the schock and coming to terms with my cancer diagnosis I forgot about it and discovered last week that now there are 8 lumps on both legs (4 on each) - all at the same place over two legs. It starts from thighs and can be felt only when I run my hand over them and at times press (they are well embedded in the tissues) except for the ones on shin when they feel like cysts. I have been a keen gym person doing leg and arm weights for over 5 years. Shall I be worried about this due to cancer diagnosis or carry on with breast cancer treatment.

Also I have 2 lumps on my anal passage. One has been there for years and checked by doctor as hammoriod. The first one has turned dark brown/black but the new one is pink and hurts everytime I have bowel movements and for a while afterwards too. Do I get these check because of my diagnosis?

Look forward to your guidance. Thanks.