Brief Answer: From nothing to Heart problem or stroke, anything Detailed Answer: Dear Sir, Lightheadedness may be a symptom of a cardiac disease or stroke. However, orthostatic hypotension can also cause this, if you experienced this while standing. If you have any risk factor like Diabetes, hypertension, smoking. You are at risk of cardiac diseases and stroke. Usually, the funny smell or any sensory hallucination are a part of "Aura" which occurs in epilepsy or migraine. Lightheadedness can be associated with heart diseases like heart block, hypotension. It can be a part of cerebro-vascular diseases like stroke, usually associated with weakness of one side of body or double vision, dysarthria, dysphagia. It can also be a Transient Ischemic Stroke , which can be a warning sign for further catastrophe. It is advisable for you to get a complete evaluation done. Get your ECG, Lipid profile, Neuro imaging if suggested by your doctor. See, i am not saying you have these diseases, but at the age of 61 years, it is always better to be sure. I hope i am able to solve your query, still if you have any query, please ask us. Stay Healthy

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