I'm sorry to hear that it affects you so badly. That I don't have an answer for- I get
'shaky' and sweaty (EW!) but I've never passed out from it or gone into a coma (thank goodness). I really like granola bars that are more natural that have whole almonds, peanuts, and dried fruit in them because they are better for you altogether and have the added bonus of protein. Clif bars are ok (don't know if you've heard of them) as they have carbs & protein, but a lot of them either are way over the carb amount you want (around 20-30 grams/carb should bring your levels up) or don't have enough to make a difference! So if you go for Clif, try to get the Clif Mojo bars- they have around 20 g/carb and 9 g/protein- my personal favorite is the peanut butter pretzel, yum!
Another favorite of mine (for lows & just snacks!) is the Nature Valley protein bars- they're relatively new and have around 15 grams/carb and 10 grams/protein each, so they're more for snacking or you could combine the bar with some crackers, an apple, banana, or other fruit, or some juice. They have dark chocolate & peanut butter or dark chocolate, peanut & almond- if you don't like dark chocolate, I would still give it a try, it isn't an extreme dark chocolate and isn't bitter at all.
Regular Nature Valley bars are decent as well- if you eat both bars in the package, you get around 30 g/carb and 5 g/protein, which isn't terrible.
Hope that helps! Good luck.
ETA: Oh man, you don't talk to your doctor about this? I know my case is way different with diabetes, but I see an endocrinologist every 3 months to make sure my blood sugars are under control and I'm healthy. While I'm there I speak to a nutrition specialist who discusses diet, medications, etc. Maybe you should set up an appt. With your general practitioner and voice your concerns. Your health is nothing to mess around with, especially if you're ending up in the ER!