Hello Douglas. welcome to the forum 🙂 I'm sorry to hear that you are having trouble with your levels. Are you on any medication? One thing to bear in mind is that ALL food containing carbohydrate will raise your blood sugar levels, not just sweet foods, so you might need to look at the things like potatoes, rice, pasta and bread that you are eating. White bread will actually raise your levels faster than sugar!
If this is just a recent thing, is there a possibility that you are sickening for something? Infections can raise levels in a lot of people and sometimes the levels are already rising before you realise you are poorly.
If you are on insulin, then there is the possibility that your insulin has lost its potency - it might have got too warm, or been out of the firdge for more than 28 days.
I thing the best thing would be to speak to your doctor as your medication might need adjusting. Hope you are back to normal levels soon!