Does anyone have both rheumatoid arthritis and osteoarthritis?

[OurMavis]

If so how do you tell which is which?

I thought I knew the difference because I have osteoarthritis - wear and tear in my fingers and toes and the RA is different . With OA it's a gradual deterioration over years. Whereas with RA it's mostly palindromic where a single joint flares up, gets hot and swollen and very painful but it only lasts around 24 hours and is fully back to normal afterwards. This is followed by fatigue.
It's worse if it's a joint that's already damaged by RA.

Recently I had a flare in one hip. I've never had any problems in my hips before but this was excruciating and didn't stop after 24 hours like usual. In fact it's still moderately painful 8 weeks later.
I want to find out if the flare has done lasting damage or whether it wasn't an RA flare at all.
Rheumatologists just gave me a steroid injection which helped for a bit.

I’ve had RA for almost 30 years and suspect I may also have osteoarthritis in my spine, hips & knees. I’m waiting to see my consultant next week when I'm going to ask for investigations of suspected OA to confirm.

My RA flares are more prolonged than you describe yours to be in that they are mostly 7-10 days in duration and display as pain, swelling and stiffness of the joints affected. I have, however been having an issue with one elbow for approximately 2 months that I suspect needs a joint injection which I’ve never had to have since moving to where we live (6 1/2 years) so I’m also wanting to find out the process for that. I’m not sure they can tell whether a specific flare has done damage other than doing X-rays or MRI of the hip and comparing to previous films/scans
to look for changes - but that could also just show changes over time and not a single flare.

Thanks that's useful. I used to get more prolonged flares but this is a new thing over 18 months. Rheumatologist calls them palindromic flares.
I've never had a joint injection but I understand they can work well if they hit the right spot. I've just had the intra muscular steroid injection which has an overall effect of dampening inflammation.
My consultant seems able to tell from physical exam that some of my joint issues are wear and tear, ie osteo. It's just this hip that's odd because osteo is usually something that's a slow process and this happened overnight and felt to me like RA.