@SueJB I caught a post from her yesterday saying she was going to stop using the forum - I am surprised she didn't post in this thread to say so. - but I suspect her head wasn't in the right place at the time of posting.
Tweaking down: reducing the amount of insulin per X grams of carbs. So say you're working with a ratio of 1u:10g for breakfast (unbeknown to you - just to give you an in range result come lunch time) if you upped your basal you might need 1u:8g instead to keep you aiming for the target. Basal testing, still doing your basal jab in the morning but skipping breakfast and the associated bolus could see you rise meaning not enough basal, so up the basal and if you do a basal retest and you're then steady great!, having the same amount of bolus as before though would then see you dip.
As for weight issues, I'm lucky I'm the same weight I've been for years, but in the early years I put on a lot of weight (more than I
probably know I lost pre-DX) - generally I would say we're just like everyone else though too much in not enough out but we have a better understanding of food than most however I'd rather be fatter and have good numbers than slim with bad numbers as
@LooperCat will probably testify.........?