Get a RTPCR test done.
Till the report comes consider yourself as a positive case and take all the precautions..
Consult any doctor and start your treatment.
Next Steps
Keep monitoring your spo2 by pulse oximeter.
Do breathing exercise( take deep breath and hold it for 25 seconds, repeat this 4-5 times 2 hourly)
Sleep in probe position( sleep on abdomen) for 30mins every 2 hourly.
Health Tips
Can consult me on practo