Hi Frenchalps,
Hopefully your ok, I know it can be quite a shock being diagnosed with dibetes!
For me, the main symptoms I have when i am high are REALLY bad muscular aches, like arms and legs are so painful i can barely move, also, very thirsty, sometimes people also get blurry vision (its the sugar buildup in the blood vessels of your eyes)
If you are going hypo, you'll probably notice you feel very hungry (hopefully you have a good warning on this, mine usually kicks in around 4mmol) light-headedness and dizziness, if its quite a severe hypo, or comes in the night time, then you might get cold sweats too.
Are you type 1 or 2 btw, i couldn't see in your post, but it may be my old eyes!
A few tips which you'll probably find useful (hopefully)
Always carry something sweet with you, dextrose tablets are very good, work quickly and are easy to carry. To go with these, i always have something that is slow release carbs, so it keeps the level up, rather than just a quick spike. I use flapjack bars, as the oats are a great slow release carb (and they are vegetarian too
)