Hi, I Had An Angiogram Last Wed And It Is

Hi, I had an angiogram last Wed and it is now Monday. I rested and did everything the doctor told me to do. For the last couple of days, I have tried to add a small amount of activity so I'm not bored out of my mind. I went to the store and back home and felt like I had worked a 10 hr day. I'm just beat with the smallest amount of activity. Is this normal? Or do I need to call the doctor?