When i touch metal such as my aluminum laptop, i experience a strong metallic taste in my mouth and throat irritation. any info. as to why this can happen? i do not take any medications or have any health issues?

I suspect the power of suggestion here. I can't image that touching an aluminum object would generate a truly metallic taste otherwise.

Usually strong metallic taste caused by gum disease induced bleeding. I've never heard of touching metal causing metallic taste. Please see your Dentist or a Periodontist to evaluate for gum disease. If cleared, next step would be to see your Physician or an Internist.