If she is loosing weight and anemic she could need a good worming. Then supplement her diet with protein - meat scraps, eggs, yogurt, rice, oatmeal etc. to help her gain weight.
Those freckles aren't blood spots. It is just a different pigment concentration in the shell. I have 2 cuckoo marans that lay the spotted eggs every single day. You don't have anything to worry about.
We have been cultivated by the commercial egg indutry to expect eggs to be perfect and...