for the past few days, been feeling very tired, light headed, and constant queasiness in my stomach.?

Fatigue often triggers off further problems such as headaches, migraines, dizziness, lightheadedness, shakiness and nausea.

To combat fatigue perhaps the energy vitamin B12 can help or a vitamin B complex. Coenzyme Q10 can also help to boost your energy level as in a web search for "coenzyme q10 for energy". The super food Spirulina is another good energy booster.

One of the most common fatigue causes is anxiety which is a state of fear of real or imagined danger, which is manifested as increased heart rate, trembling, panic, weakness, extreme fatigue and stomach or intestinal discomfort.

Besides anxiety there are many other common fatigue causes such as insufficient sleep, too much sleep, under eating, thyroid problems or other illnesses (such as anemia, mononucleosis, CFS, glandular fever and many others), side effects from medication, dehydration, overexertion, an unhealthy diet and other causes as discussed in a web search for "common fatigue causes".