Hi Harry,
Good to hear from you again.
Few items you may want to review from your post. Ice cream.... be sure it is a all natural ingredients, most are not. And like Janet stated, dairy is an issue for some people... maybe it is an allergin food for you. Could cut out dairy for a week and see how you respond. May want to add a calcium supplement if you cut out dairy long term so do not pull calcium from the bones.
How about the corned beef and bacon? I have not had either under the NSD/LSD... but I know I had issues with pork sausage (I try to stay away from processed as much as possible).
The chocolate may need to be consumed in moderation... I would discontinue for a week as well to notice any improvements.
Some other good snacks are raisons, walnuts, almonds, dried fruit..... I now love frozen fruit berry or cherry mixes that I thaw out and eat.... very yummy!!!