What is the reason for the constant fatigue, pain, and disturbing dreams that the husband experiences? Are these symptoms of sorcery (sihr) or the evil eye (ayn), and how can he be treated in Qatar?

Direct your prayers and persistence to Allah Almighty alone, for He answers the distressed and removes evil. Know that for every disease there is a cure, and that Allah tests His servants with good and evil so that they may be patient and content. There is no harm in resorting to a trustworthy raqi شرعي (one who performs Islamic exorcism/healing) if there is any doubt about the presence of magic.