Oh yes you must be honest with your doctor and tell him everything.
if stress is a major factor in your life that is triggering the migraine attacks then perhaps you should look at ways to ease this or treat it. take some time out to evaluate what is going on at the moment. i'm sure as a result of missing out your family will want to help you.
look at www.bodykind.com or www.migracap.com for a migraine cap that i use to help with my migraine attacks but its so soothing that i find it great for my nausea and helps me relax. its had great reviews in the uk and as its a one-off purchase it will also save you a lot of money.
best of all its medication free so no side effects. take a look and show your gp if you are not sure.