Chest heaviness. Virus these days.

Hi few days ago, my mother was facing dizziness very frequent and all of the sudden she was feeling like she is out of breath and burning sensation all over the body, then we measure the BP. It was around 145. We knew that no is on higher side we consult a doctor online. Due to covid situation we couldn't consult in person. Now she prescribed some medicines and suggested to eat banana, soaking feet in warm water. Now dizziness is gone after doing this for 1 week but my mom feel heavy ness in chest and find it difficult to deep breath. My mom used to be fit 2 months ago. All these things had started after her cataract surgery. She got treatment for both of her eyes within an interval of 15 days and was on bed rest for almost 1 week and used to eat dal or khichdi that time . Please suggest me to understand the issue. We are scared of going to hospital due to corona virus these days.