<s>[INST] My hands have been going numb and stinging and now one ends up cold and then the other and I been having the same in my legs. My veins look bigger and they look bruised. Also my finger nail bed started to have red streaks at the the top of every finger. I been feeling really weak lately also pls help [/INST] Hello! Welcome on Chat Doctor ! Your symptoms seem to be related to peripheral neuropathy. For this reason, I recommend consulting with a neurologist for a physical exam and performing a nerve conduction study (electroneurography) to investigate for possible neuropathy. I would also recommend performing some other blood lab tests : - complete blood count-vitamin D and vitamin B12 levels- PCR, sedimentation rate for inflammation- thyroid hormone levels, etc. Hope you will find this answer helpful! Best wishes, </s>