Bob, you have to have your ice cream, there's just no getting around it. The meds have worn off, you're craving something sweet, p'nut butter and celery just won't cut it! It will haunt you until you give in..... okay, maybe I've just fought and lost that battle one too many times....
But there are ways to do it healthier than what you are doing! FIRST, you do have to stop blaming the medicine.... or lack of medicine, I guess.... Just because the meds have worn off, it doesn't mean you suddenly lose all sense of self control! If we keep telling ourselves that it's not our fault, or we can't help it, or we just can't stop ourselves from being self destructive because the meds have worn off, then it becomes way too easy to make really stupid choices.... like loading up that ice cream bowl! You do have to take control and make the choice to be healthier with your late night snacking! You CAN do it, you just have to want it!
Like try switching from Moosetracks (just go to the freezer, grab the Moosetracks, and chuck it into the trashcan.... do it NOW!!!), to something light. Not the gross light, but go for Edy's/Dreyer's slow churned 1/2 the fat kind.... they have a gazillion flavors and they're really good! BUT don't let the 1/2 fat label talk you into eating more.... cut down to one or one and a half servings.... if you don't have a kitchen scale, I highly recommend getting one.... they really help with keeping servings in check!
My personal favorite light ice cream is Bluebell light Homemade Vanilla.... but you can't always get it because it's only sold in certain states.... Outback Steakhouse sells it by the tub, I think.... but then you'd have to fight off that steak temptation.... mmmmm.... now I'm hungry.....
Anyway, if you need toppings, stick with fresh fruit (like the berries you mentioned), chopped nuts, cereal..... yes, cereal.... Kashi Go Lean Crunch with vanilla ice cream and a sprinkle of cinnamon is really good.... Grape Nuts are good too. If you need something chocolatey, go for dark chocolate covered raisins, or dark chocolate covered cranberries.... but keep your serving sizes in check!!!
AND.... if you're going to indulge with a late night ice cream snack, then you might try cutting back on some of your calories during the day, and add in a bit of extra exercise....
AND if you can do it, instead of ice cream, try having a bowl of cottage cheese and applesauce (1/2 a serving of each) with a sprinkle of cinnamon/sugar (mix it ahead of time with more cinnamon than sugar....) and chopped pecans, almonds, or walnuts. I personally loathe cottage cheese, but my husband made this for me one night, and I just ate it to be nice, but I found that I really liked it! I crave that almost as much as I crave ice cream now! My husband mixes raisins, craisins and flax seed into his, and he loves it. I like it plain....
If you really want to resist the ice cream, you could try brushing your teeth more, or chewing minty gum.... that works for awhile....
ANYWAY..... I don't think you should deny yourself your ice cream. I just think you ought to do it a bit healthier. And you'll find that once you take away it's "forbidden" status, and make it okay to do, you won't want to do it as much. I don't know what it is, but that whole "forbidden fruit" thing just makes it so much more exciting and irresistible! Once it becomes acceptable.... well, it just doesn't taste as good!