I was visiting an immunsuppressed 76 year old from Mon to Friday .
Returned home Friday late afternoon to partner hacking and coughing,clearly unwell .
Tested Sunday afternoon ,he was v strong positive ,mine was weaker .I'm feeling dreadful now .
My son has had an on off cough and sore throat for 2 or 3 weeks .Didn't test until yesterday when was clear.
Could I have passed it on to frail relative ? I had no symptoms until Sunday .