Chest & Breathing Problems

Since last 2 days,I am feeling heaviness in my chest and cold hand and feet and sweating sometimes. It feels like i cannot breathe toh the full and something is stopping me from doing so.

Pain in chest while coughing. Can't take proper breathe. Coughing in half breathe only. Stomach upset. Can't get sleep in night.

Please check the query in the attached photo. Can you please suggest if there is anything to worry about and if any action that needs to be taken?

My mother is covid positive Her saturation is 93 on an average Yesterday got her CT done and score is 8 Started with medrol 16mg teice three days back And today have started with doxcycyclin 100mg Do we need yo add anything?? Faviflu types??

My parents aged 65,Covid positive patients, there oxygen saturation is fluctuating in between 89 to 92,they have light fever with much tiredness, does they need oxygen support ,they are taking light food.

I was tested covid positive on 20th april. I have completed 14 days in isolation. Since 24th i dont have fever and body ache. I have a little  mucus and i feel something is there in my chest. Shall i end my isolation without retesting?

Few months back,I suffered from bronchitis,then I recovered by using Ab phylline and Aerodil Ls syrup as per doctor's advise But I want to improve my lung health,Is there any good supplement powder like pulmocare etc to improve good lung health 1) Any good supplement powder & vitamins to improve lung health?? Please give me your valuable answers

Is it required for people who have been covid positive in past, to get vaccinated, if yes, is there a time period for which they have to wait? (It's my 22nd day since the first symptoms. I have recovered. So wanted to know if vaccination is applicable to me ? )

Is hrct scan safe ? I have read in internet that It can increase the risk of cancer ? Thank in advance

I am 19 years old i was diagnosed with TB in 2019 may and then in month of march treatment complete and i feel breathlessness so doctor took CT in which scars and calcification appear after 1 year again this problem started. Does it symptoms of Pulmonary fibrosis