Shingles or some other rash?

Hi 3 weeks ago i got hospitalized for appendicitis, im 21 was 20 at the time.. i had a rash for about 2 weeks prior, so had it well over a month now, well it started round the side of my right hand side and has spread through and past my belly button and has reached my pubic hair line, its NOT PAINFUL, it itches sometimes but not that bad, its not blistered either, its like a curved line that stops at the middle of my stomach and runs down to my pubic hair in a very thin line, literally as thin as a pencil line, but the rash above is about 1-2inches wide until it reaches my waist line.. while i was in hospital they said it looked like shingles but havent had any sort of treatment they just put me in a private section with a bed and TV. while i was in hospital i got 3 little red marks on my bicep on the same side of my body.. since leaving hospital it has changed from 3 little marks to a rash down my whole arm from my bicep to wrist, both rashes are on my right hand side, very rarely itch, not painful but they skin does peel abit on my belly but not on my arm.. is it even possible to have this skin problem without pain because when i search it it comes up saying very painful and my mum knows like 10 people that have had it and it was really painful to the point where they were bed bound for weeks.. mine had been present for 5weeks at minimum and doesnt look like its going to get any better anytime soon.. post your experiences below. to me the rash looks more like the RIGHT HAND photo of these two photos but in a long curved line https://www.google.co.uk/search?q=psoriasis&client=opera&hs=OS1&source=lnms&tbm=isch&sa=X&ved=0ahUKEwic0dSprbPcAhWmKcAKHY46D64Q_AUICigB&biw=1880&bih=970#imgrc=bqj21UMe2rAA0M:

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