Your pin-prick sensation in the chest might be one of these:
1. Slight intolerance to Metformin
tablet as you are on it since recently (only 3 months). So if you think the pain is there within say 3 hours of taking the Metformin tablet, then this is the reason. Then in that case, reduction of metformin dose for 3 days and taking it after food will help you. After 3 days, go back to your normal dose after consulting your doctor.
2. If pain is more around the breast area, it can be part of diabetic neuropathic pain
which disappears when sugars are better controlled. If it persists you will need to take neuronal modulator to get rid of it.
3. The pain is more on the left side of the chest. Being a patient with diabetes
and also dyslipidemia
, eventhough you are 34 years old please go and get your heart check up done such as ECG, ECHO, Treadmill tests and see a cardiologist.
I hope you got your answers. Take care.