1. could be MCS [multiple chemical sensitivity],resulting in nausea, fatigue
2. Advil [ibuprofen] reduces fever,pain and inflammation caused by headaches and because you took 8 tablets, thus could be ADR [adverse drug reaction] of the drug: dyspepsia
, nausea, vomiting
, dizziness. [An overdose of ibuprofen can cause damage to your stomach or intestines, call your doctor if you notice black, bloody, or tarry stools]
3. deep cleaning all day long can result in over exhaustion [fatigue syndrome] [dehydration] [lack of food] resulting in stress headaches.
. drinking non-caffeinated drinks/fluids and omega 3 fatty acids [anti inflammatory properties] may lead to good response.
. you should contact your physician about medications that are safe to use, while physician can help determine which agent is best.