Yes paracetamol is OK to take, I think any attempt at diagnosing anything on the info given would be huge stab in the dark.
I think shingles would be visible by now if it was painful.
I wouldn't attempt a diagnoses and sqad will probably want more details as well.
What sort of pain...aching or stabbing? ( shingles is stabbing)
Does anything make nit worse? Eating, moving?
Are you constipated and are your "waterworks" OK.
Any nause or vomiting?
Have you been doing any unaccustomed exercises.....digging in the garden, lifting etc.
Sounds muscular and yes I agree with my friend RATTER, paracetamol would be an appropriate choice of pain killer.
My Mum fractured a small bone in her pelvis in October and since recovering from that she now has a similar pain to yours - stabbing when she moves or breathes in, Doctor has sent her for another back Xray (results next week) but thinks that could be muscular ............ I wondered if she has fractured a rib as she had a bad cough a few weeks ago and has been diagnosed with osteoporosis. Sounds like a muscular pain to me wolf.............
Wolfie, do not ignore any pain, a pain is like a red warning light going on. Your body's way of telling you there is something wrong.
Go & see your GP & set you're mind at rest.