Chest & Breathing Problems

In August 2020, I bought pulse oximeter along with blood pressure monitor for our family use. When 4 of our family members checked the spo2% is showing above 95% except my mother. Her spo2% showing 90%, 89%, 91% and 92%. Since then I am checking her every week and it's showing the same. Now this is Oct. I would like to know, What disease she is suffering from?

I had cold and sore throat 4 days back , from first day my spo2 decreased from 99 to 95. So I took rt pcr test and chest st scan . Covid test was negative twice and hrct thorax is nomal. I have observed one thing I have nasal congestion. And when I take breath from my mouth , my spo2 comes normal.

Feel have mucus in throat and lungs as unable to breath properly all the time and have mucus to spit. When sleep and wake up feel pressure in chest. Need help

I'm facing problem of deep breath, sometimes suffocation and continuous increased heart beat rate. It's been more than 3 years.

I have cough in chest from serval months. Because of this i am suffering with breathing problems some at some times due to cough. Please give some home remedies.

I'm felt extreme pain in my lower part of right breast.. also my right breast is bigger than left one.. what can I do? how to cure the pain please guide me

I'm 23 year old, I quit after 4 years of smoking and after 1 month of quitting I experience chest tightness and pain is it dangerous or common after quitting

Sir, My father hospitalized for 30 days due to covid and in 20 days he is ICU with ventilator (NIV) Support.After diagnosis with covid 19 he is suffering with pulmonary fibrosis.The CT chest(plain) states the following:- CT CHEST (PLAIN) TECHNIQUE : CT Study of Chest was performed on 128 Detector Row Multislice CT Scanner. FINDINGS : Followup case of COVID-19 pneumonia with severe changes. Trachea and major bronchi are normal in course and calibre. No evidence of any luminal filling defects. No significant mediastinal lymphadenopathy. Diffuse ground glass attenuation with subpleural interlobular and intralobular septal thickening, traction bronchiectasis and bronchiolectasis in bilateral lung fields. Mild centrilobular emphysematous changes in right upper lobe. No evidence of pleural effusion / thickening. Mildly elevated right dome of diaphragm. Visualised sections of Liver and Spleen are normal in attenuation. Small cyst in left lobe of liver.Is this condition is reversible?

I have was detected as covid positive now after 17 days after taking medication i tested again and results are Negative...but now sometime I am feeling slight breathless can't actually define as breathless...after talking for sometime or after some physical work...I too tend to observe this issue more when my stomach feels full after meal...is there further test or evaluation need to be done please advise...I am regularly checking my oxymeter for heart bits and oxygen its between 95 and 100%.

I have been experiencing pain on the left side of the chest while breathing. It also feels heavy when i m sitting. Since the past month this has increased. I don't smoke or anything however i have lived in delhi for the past 3 years.  I have general anxiety and when i feel anxious it starts feeling heavier on the left side of the chest. What could be the reason behind this?