Hello I've just been diagnosed (today!) With psoriatic arthritis having had various joint swelling on and off for a couple of years. I don't suffer with psoriasis but it does run in my family, my daughter has it! I've been prescribed methotrexate (12.5mg) to start with but I've been reading that a lot of people seem to suffer with sickness so I was wondering how quickly the side effects happen (if they happen) as I'm trying to work out what day is best to take it as I work part time. TIA.