Seaside Jimmy

The weather can actually affect your tattoos as well. There have been days where my tattoos are uncomfortable and itchy and slightly raised. After a bit of research I saw that the weather - for me humidity can do this to the skin and tattoos.
If it is just recovery though it doesn't look infected, some skin is just more sensitive than others.

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I've experienced something similiar...but the discomfort was never anything so bad and unbearable that it prevented me from doing my day to day shit. it was more just intermittent itchiness for several months...just wanted to scratch and scratch like a dog with fleas.
not sure what the cause was, it settled down over time and my leg didn't fall off. so that's good haha! I speculate that it may be the homebrew ink my bud was using...or chemical reaction of mixing inks (when he mixed the green and white, that shit bubbled like a school volcano science project in the cap)...or my body reacting to the pigments? I don't know. but I just sucked it up and scratched ... that green ink is still BRIGHT AS FACK.
then again, i'm in this ongoing cycle of getting and healing tattoo and I'm just used to always feeling like a lizard.
maybe try soaking in an epsom salt bath ??? good luck
ps nice octopus tattoo

will add...2 months the tattoo is only superficially healed. usually takes about 6 months for everything to really settle underneath the skin.

Some of mine have done this...feels more like a "nervy" sensation under the skin than anything else, for me (not sunburnish - more just really itchy or sensitive to touch). With mine, it normally goes away within 4-5 months or so - which is when any rough spots in the tattoo tend to smooth out as well. 
That's just me, of course, and everyone's different, but my .02, for what it's worth...

I had a similar sensation with my last tattoo, also. Portions of it were more sensitive than others and did feel like a mild sunburn, especially when touched by my shirt or hand - and I never had that with my first tattoo. Not sure if it was related to the colored inks and might have been a mild reaction or just related to the process or......? It did settle down over time and now feels totally normal. I'm just at 8 weeks now so mine did settle out more quickly - but I've learned here from the experts that each person heals differently, and each tattoo can be a new experience in healing, too.