I have a question about when people get goosebumps after seeing something emotionally moving?

your erector pilli muscles 'flex' the small hairs that cover your arms and legs, which is what creates goosebumps. Evolutionarily, this process can be a reaction to fear, intimidation, desire, etc. Consequentially when something is emotionally stimulating to you, your hairs raise up and give you goosebumps. As far as your getting them frequently, its likely that your erector pilli are slightly more active than average, which is totally normal. hope this helped