Anxiety and Tension. Hormonal changes.

I was diagnosed with borderline cholesterol July 2020 end and since then I always have fear of having a heart attack. I've made some changes in my diet such taking brown rice and low oil food. Also,sugar replaced with jaggery and milk chocolate to dark one. I was advised to take lipicure for 15 days first and then for another 30 days.As I'm not a huge fan of having medicines so I stopped having it after 15 days. Along with this I was advised to take  Etilam which is an anti anxiety and induces a sound sleep at night.I've a very mild muscular pain on my back which at times runs between the left shoulder blade central spine but subsides after sometime. At times, when I get up I feel a bit weak and have to shut my eyes for around 5-10 secs and I can feel a bit of strain on my head but then things are back to normal.I also bit of anxiety "ghabrahat" at times and kind of mild panic situation.Are all of these anomalies due to lack of vitamins or major hormonal changes.