Amlodipine and Erection problem

Hi I am 39 year Old. I have recently diagnosed with high blood pressure. So my GP put me on Amlodipine 5mg. I am diabetic type 2 as well and taking Metformine 500 mg for that. 

Now after being on this two medications I am experiencing some erection problems. I can always obtain an erection but recently can't maintain that when try to have sex. I am loosing my election right inside vagina which is utterly frustrating for both of us.

I have already got long time premature ejaculation problem on top I am facing this Erection problem. My sex life now almost non existent. Frustration is at sky high between us two. 

I studied online some people said amolodipine cause some kind of erection difficulty but with careful further study I got to know Amlodipine is calcium blocker drug so it is actually less likely to be responsible for erectile dysfunction. 

I find it too embarrassing to get myself checked by GP.  Besides if once I change the Amlodipine if the new one make it worse how would I know.

Do any of you have similar conditions please let me know your advice 

Thanks 

Yo don't need to have a physical examination by your doctor just because you are experiencing ED. You should tell your doctor you think this drug may have this side effect. There are many other alternative anti-hypertensives your doctor can give you.. Also ED is usually helped with Viagra or Cialis and your doctor can prescribe something like this to try. 

Thanks for the reply. I will try to get the medication changed hopefully without much of hassles.