Failed the biosimilar...

So I had an infusion of Stelera (well, the biosimilar Pyzchiva) and it has frankly done nothing for my Crohn's. That was 7 weeks ago, and I'm getting closer to my next injection date which will be with Wezenla (I changed hospital's recently, and they order Wezenla).

I've had a pretty strange experience with Stelera so far. Every morning I wake up with burning pains in my upper back. I've also had to go back onto my previous medication of Rinvoq as my gut and joints just aren't what they should be.

Did anyone else find that they found absolutely no relief after the infusion? It's made zero difference and there's been no improvements. I've simply developed this weird side effect of burning pains in my back every morning which I didn't have before.

I am so frustrated and fed up of feeling unwell. Any advice will be appreciated.