Humira and pains in hands and feet

Hi everyone, I'd much apreciate anyone's thoughts on whether I should be concerned about any of these symptoms, especially those who have had experience with humira. I've been on humira since November and in general things have been good. However recently I have been noticing increasing bouts of severe skin sensitivity that feels like my skin is raw though there are no marks or injury and it lasts about a day or more each time. Also have mild throbbing pain in my hands and feet that comes and goes through out the day though it seems like it is more frequent than it was a week or so ago. It is mild but does get a bit distracting when I'm driving. It's not like joint pain, it's more like pains I had while on flagyl that went away when I stopped the med. I've also had some nasty night cramps in my legs and episodes of what I would consider restless leg syndrome that was in my arms and legs. I know my iron levels are fine so I've ruled out that as a reason . Is this just what I should expect on this drug or do you think it's worthy of looking into? Thanks!

Thanks pb4. I've never had low B12 even at my worst but I'm hopeful that maybe it will make a difference. I got an injection of it at the beginning of the week but so far it hasn't kicked in. Still have feelings like I'm wearing cool socks over my legs and bad aching in the calves as if I had leg cramps all night or walked endlessly the day before in high heals (which I definitely did not do haha)