Question ?

Hi, I had an Angioplasty 2 weeks ago & one stent in the r/h coronery artery & a tear in the same artery caused a 2nd stent to be placed. This was the 6th of May & the sheath in the groin came out on the 8th. Today, after doing much better; I went to WalMart for tires & did little to no walking & developed a fair sized lump where the catheter came out. This alarmed me & called my wife to call the Dr.'s office & they asked me to come in because of it being a hard lump. She picked me up & took me & the nurse there checked & said " If it gets bigger, go to ER. If not , take it easy for a couple of days & use ice packs on it. Has anyone experienced this & do you have some recommendations for me with this problem. Thank You, Billy