Hi there. Im not a doctor but have experienced LV Dysfunction myself. Its borderline so I guess you will be in for the lifestyle modification lecture. No smoking of course, limited alcohol intake and you will be buying good walking shoes, restricting items in your diet, The medics suggest 30 min brisk walk most days!! This may be enough with a follow up Echo in 6 or 9 months. It can improve, this is dependent on the root cause and your success in lifestyle changes above.
I wouldnt be scared!! What was your EF in the test? This is an important number. Normal is 55 - 70%. When I was bad in 2014 mine was less than 20%. Thankfully its better now. How is your BP? Its just that high BP over time can cause it. So BP must be properly controlled. If it was worse, you would be getting meds also. Probably one or two tabs a day. Nothing too drastic. Its probably hard to get your head around this, but its borderline and can often be reversed. It seems your heart is doing fine and the Echo is a good function test. The valves are ok which should be re assuring. What artery showed the inflamation you mention in the post? I presume your blood tests are ok?