My boyfriend is acting very different I have been with him for 7 years. He looks high to me, his eyes look like he's been rubbing them red and tired but glazed at times. Every time I think he as had something to make himself high he seems very active wanting to do jobs around the house, talking a lot more than usual. When hes out of the house hes not been answering his mobile or its even switched off and he just says I never heard it ringing or it went off in my pocket or he seems to take alot longer going somewhere and getting back home than usual, and he doesnt want sex with me anymore I feel like he his hiding his whereabouts from me and not been totally honest he's acting shady. I need some advice on how to know if he his taking drugs and what drugs if he his.