I am a 76 yr. old woman and 6 weeks ago, I had 2 stents put in a main heart artery. I did great for quite some time, but lately, have felt real lethargic and 2 different days have had a drooping lower lip with a slight tingling sensation, it comes after I have walked our dog or walked around outside. it does go away, with no side effects left. Can you please advise me about this? Thank you so much, Dee