Post cardiac cath pain

I had a cardiac cath 2 days ago. The next morning I removed my dressing in the shower as instructed and felt fine, slight tenderness to the site. As I was trying to put my clothes on, I lifted my right leg and I had a "popping sensation" to my right groin that took me to the ground and I blacked out. I finally made it to the phone, called triage and they sent me to the ER. The ultra sound showed no bleeding or blood clot and I was told it was proababy a muscle spasm and to come back if it got worse. I've been on ibuprofen for 2 days with ice packs to the area and can barely walk. Is this normal? I'm supposed to return to work tomorrow and don't know if I can. My heart cath was completely normal.

[ed34]

I'm shocked that you actually blacked out. Yes it can be sore with some people and on
my fourth angiogram it was quite painful for about a week. Walking felt like the muscle was heavily bruised but there was no bruise in sight. I believe they use a seal sometimes
when they finish the procedure which gradually disperses. Maybe this had a problem and
caused the pain. If the leg feels stiff and painful after a week, then have it checked again.
Keep checking that you have a pulse in your foot also and the colour of your feet are the
same as each other.