Hello there. Sorry to hear you are feeling like this. I did too for 3 months after my closure with the occlutech device in September 2013. I got so weak I'd have to lie down and often felt feint. I also had a few episodes of blurred vision. Are you on plavix / clopidogrel to prevent clots whilst healing? A side effect of plavix can be weakness and fatigue (& also anaemia given it is thinning the blood). As soon as my cardiologist took me off the plavix 3 months after my procedure I bounced right back to my normal energetic self. hope this helps. All the very best, Sarah