How to identify hypo and how long after intake of medication hypo can occur?

[Kaha]

I had never experienced hypo . But in the very recent past my BS readings fell up to 4.0-4.3 tested in the evening before evening snacks ( 5 hr after lunch) .
I take 30mg diamicron in the morning.
I felt some sort of weakness/dizziness before checking BS when these got so low. I am trying to establish whether these are symptoms of Hypo or not? If yes, can this occur after intake of Diamicron 8-10 hours prior to such symptoms occurred..Can anybody share his/her ideas on this ?

 

[Lamont D]

Your reading g of around 4 mmols are not hypo readings.
Yes your meds may give you hypos, you should discuss this with your doctor.

There is so many symptoms of hypos, that it would be easier to Google it, rather than me list them.
What are your fasting levels?