Your story reminds me of a similar one that appeared on reddit a little while ago. <a href="https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;bestof&#x2F;comments&#x2F;34novp&#x2F;user_thinks_a_stalker_is_leaving_random_postit&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;bestof&#x2F;comments&#x2F;34novp&#x2F;user_thinks_...</a><p><a href="https:&#x2F;&#x2F;np.reddit.com&#x2F;r&#x2F;legaladvice&#x2F;comments&#x2F;34l7vo&#x2F;ma_postit_notes_left_in_apartment&#x2F;cqvrdz6?context=3" rel="nofollow">https:&#x2F;&#x2F;np.reddit.com&#x2F;r&#x2F;legaladvice&#x2F;comments&#x2F;34l7vo&#x2F;ma_posti...</a><p>Do you have a carbon monoxide detector?<p>Dizziness can be one of the symptoms. <a href="http:&#x2F;&#x2F;www.nhs.uk&#x2F;Conditions&#x2F;Carbon-monoxide-poisoning&#x2F;Pages&#x2F;Symptoms.aspx" rel="nofollow">http:&#x2F;&#x2F;www.nhs.uk&#x2F;Conditions&#x2F;Carbon-monoxide-poisoning&#x2F;Pages...</a>