Portland, ME – If you’ve felt unexpectedly dizzy, lightheaded, or unusually tired this spring, safety officials in Maine say it may be worth checking more than your sleep or caffeine intake.
According to fire and public health officials, mild carbon monoxide exposure often begins with symptoms that are easy to brush off — especially during late winter and early spring, when routines shift and winter safety concerns fade.
“Dizziness and headaches are often the first signs,” officials say. “And carbon monoxide is rarely the first thing people think about.”
Carbon monoxide (CO) is a colorless, odorless gas produced by furnaces, water heaters, fireplaces, gas stoves, and other fuel-burning appliances. Because it has no smell or visible warning, exposure can build gradually inside homes.
Emergency responders across Cumberland County and Penobscot County, including incidents reported in Portland and Bangor, note that many residents experiencing early symptoms assume they’re dealing with dehydration, stress, seasonal illness, or lack of sleep.
Officials say spring warm-ups can increase risk. Heating systems often continue running overnight during cold snaps, even as daytime temperatures rise. That intermittent use — combined with closed windows at night — can allow ventilation or equipment issues to go unnoticed.
Symptoms often begin subtly: dizziness, nausea, fatigue, confusion, or a lingering headache that doesn’t feel typical. During long evenings indoors — including gatherings to watch major events like the big game — those warning signs are especially easy to ignore.
By the time carbon monoxide alarms sound — if they’re installed and working — exposure may already be serious.
Officials stress that carbon monoxide doesn’t follow seasons or weather forecasts. It follows conditions.
As Maine moves further into spring, safety experts urge residents to take unexplained symptoms seriously, test carbon monoxide detectors, and avoid assuming warmer weather means lower risk.
Sometimes, how you feel is the first warning.
