You say your diabetes is well controlled. What are your actual levels?
A non-diabetic has a fingerstick bg of about or below 5 nearly all the time and an Hb A1c around 4.6% or 27 in the new units. Those numbers are MUCH lower than Diabetes Uk recommend and to my mind should be the target of every diabetic. The recommended levels are up to close on double those figures. In fact the recommended levels are high enough for an untreated/ undiagnosed person
to be diagnosed with the condition.
Having said that your problem isn't necessarily diabetes related. Look up the NHS precautions for avoiding those 2 conditions and see if it works for you; then make an appointment with your GP
hana