Dry hands, tingling sensation. Suggest?

Hi. I have excessively dry hands and they've become darker since a few months post pregnancy. I have also developed this problem where I can feel a kind of tingling sensation like ants biting when I write or drive or do anything for a longer time with my hands. This happens mostly with my right hand as I use it more. Sometimes it aches as well when tingling (jhanjhanahat). What can be the possible reason for this ? This has developed only after pregnancy. I delivered in Feb 2024. Also, since 3-4 years I have this problem where my fingers and toes become red and start tingling when exposed to something cold for a long time- like rain, cold water, mashing any cold food with hands, ice, or cold breeze while driving. It feels like pins and needles being inserted in the tips of my toes and fingers. And they swell up and become red. Why am I having this problem ? Can anyone suggest? Also my hands look like of a person aged above 60 and they are always dry no matter what.