Hello and welcome to the forums.
Well the short term effect would be DKA and death if you're not making any of your own. So I strongly urge you to have a chat with your diabetic team. Plus weight loss is usually associated with lack of insulin.
Are you T1 or T1.5/LADA ? Some of the latter in particular seem to manage to keep their honeymoon period going for a long time and don't need much insulin while they are on it, but eventually they stop producing their own and need (as in die without it) injected insulin. Another issue with honeymooners is that the change to needing insulin can be quite sudden and if you've been making insulin and then you stop making it you need injected insulin immediately.
In your position I would talk to my diabetic team URGENTLY. If they say it's OK for you to temporarily stop insulin then go for it, but it would be irresponsible and dangerous for anyone on this forum to suggest such a thing.