That happened to me a few months ago for no apparent reason, my Consultant reduced my mtx to 15 mgs from 20 mgs, and within 3 months it was back to normal, I am now on 17.5, I suppose this is why we have monthly blood tests. Try not to worry I think this happens to a lot of people. Hopefully is just a blip.
It's happened to me twice Casapp - not just the alt but each category of liver function has been slightly raised twice and it's gone back down again with the lowered dose after 3 weeks or so. But if it's very raised like that your nurse probably wants to make sure that it's settled back down before re-introducing it. There's always Leflunomide and Hydroxichloraquine to try stll so don't worry too much. TTx
Bp went up as well 170/104 started on bp meds, I always had low bp!!