I took a hair test for weed and was told I was positive. Its 11/19/13 I haven't smoked since 4/17/13. My wife has a medical card and smokes regularly. They doctor said I had a trace of thc level of 1.7 is that enough to say I been smoking myself or just been around it?

Of course you are exposed all the time to second hand weed smoke if your wife smokes for medical reasons. That is enough, 1.7, to say you have been smoking. BUT isn't she only smoking when in pain? Maybe it's time for her to smoke in the garage.