i feel that all my joints are sore and have a really sore neck.my eyes burn slightly it is not dissimilar to early stages of the flu.i was searching the internet trying to find out why i feel like a ninety year old(sorry if i offend but im only 41)i take allopurinol for gout and i think that the omeprazole is not mixing well with the allopurinol.i have decided to stop the months prescription of 40mg omeprazole after 13 days!