Why is my blood sugar higher than at bedtime. Nothing to eat 4 hours before bedtime. at bedtime 6.4 and rising 7.9.

It is possible that you may be affected by the phenomenon of dawn. This phenomenon is characterized by a rise in blood sugar levels early in the morning, even if you haven't eaten anything for several hours. This may be due to the release of hormones that raise blood sugar levels to prepare your body to wake up. It is important to discuss these fluctuations with your doctor to adjust your treatment plan if necessary.

I also have the same problem. My blood sugar is higher at lunch. There can be several reasons. There is the phenomenon of dawn. This happens to everyone even without diabetes, when we sleep several hormones are at their lowest, it allows us to sleep better, our heart rate, our blood pressure, our breathing, and many other functions are slowed down. The phenomenon of dawn are the hormones that our body releases in the morning about 1 hour before getting up (this also happens to non-diabetics), these are the hormones that allow us to wake up and move forward in our day, the energy we need to start our day. There are also other factors such as the foot to the floor, as well as the effect of Somogyi (it is when in the night our sugar drops too low, our body releases the sugars that are stored in our liver, this helps to raise the sugars.

Whatever the cause, it is always good to talk to your doctor, sometimes adjustments in the medication must be made. Below is an article in French that explains 2 of these factors. The Somogyi effect is very apparent when someone has a blood glucose device such as Un Libre or Dexcom you can discuss with your doctor if such a device that is installed on the back arm can help determine Somogyi or Dawn

https://www.diabete.qc.ca/le-diabete/la-gestion...

Alimentation | Diabète Québec

https://www.diabete.qc.ca/le-diabete/la-gestion

J'ai aussi le meme probleme. Ma glycemie est plus haute au dejeuner. Il peut y avoir plusieur raison. Il y as le phenomene de l'aube. Ceci arrive as tout le monde meme non diabetique, lorsque nous dormons plusieurs hormones sont au plus bas, cela nous permet de mieux dormir, notre rhythme cardiaque, notre pression arterielle, notre respiration, et plusieurs autre fonction sont au ralenti. Le phenomene de l'aube sont les hormones que notre corps relache le matin environ 1 hr avant de se lever (ceci arrive aussi au non diabetique), se sont les hormones qui nous permet de nous reveiller et aller de l'avant dans notre journee, l'energie dont on a besoin pour commencer notre journee. Il y as aussi d'autre facteur tel que le pied au plancher, ainsi que l'effet de Somogyi (c'est lorsque dans la nuit nos sucre tombe trop bas, notre corps relache les sucres qui sont en storage dans notre foie, cela aide a remonter les sucres.

Quel que soit la cause il est toujours bon d'en parler avec son medecin, des fois des ajustments dans la medication doivent etre fait. Ci dessous est un article en Francais qui explique 2 de ces facteurs. L'effet Somogyi est tres apparent losrque quelqu'un as a appareil de glycemie comme Un Libre ou Dexcom vous pouvez discuter avec votre medecin si un tel appareil que l'on installe a l'arriere bras peut aider a determiner Somogyi ou L'aube

https://www.diabete.qc.ca/le-diabete/la-gestion...

J'espere que ceci vous aide. Moi meme j'ai observer le Somogyi, le phenomene de l"aube et le pieds au sol (foot to floor syndrome), Mon Libre a aider a les identifier.

Hyperglycémie du matin: L'hyperglycémie de rebond et le phénomène de l'aube | Diabète Québec

https://www.diabete.qc.ca/le-diabete/la-gestion-du-diabete/hyperglycemie/hyperglycemie-du-matin-de-rebond-phenomene-de-laube/