I have been taking 6 sulphasalazine for the past year and I have now been told to inject 10ml of Methotrexate in addition to the sulphasalazine. I took my 2nd injection yesterday morning and haven't been able to get out of my bed since. I am exhausted to the point i can barely move, feel dizzy and have a really sore head. Is this normal? Does it get better at your body gets used to the drugs? Any advice would be greatly appreciated.