Can a person have sensory issues but not be autistic?

Certainly you can have sensory issues and not be autistic. I have "mouth feel/texture" issues and am not autistic. These don't particularly affect my life adversely but I do have times when I have to deal with the anxiety that they produce. Hope this answers your question.

yes one can have only a sensory processing disorder also some other medical conditions can include sensory issues cerebral palsy can sometimes include some sensory issues http://www.essortment.com/articles/cerebral-palsy-sensory-integration_103903.htm also they can occur with fetal alcohol syndrome http://www.faqs.org/health/topics/72/Fetal-alcohol-syndrome.html also they can be characteristics of quite a few genetic disorders

Absolutely! Sensory issues are not just confined to autism or other developmental conditions. Think of people who know who abhor the feeling of scooping and carving a pumpkin at Halloween; those who cringe at the sight of a rare steak, those who cannot even bear to look at a spinning ride at an amusement park, must less get on it! One of my aunts could not open a bottle of aspirin herself because she couldn't bear to touch the cotton packed on top! So in effect, the general population does demonstrate some sensory issues; it is the degree to which these sensory issues impact person's daily life and ability to learn, be part of a social group, etc. that make the difference.

Of course, and some can be general disorder, nothing necessarily specific. Autism in itself is so board, sensory issues are just an indicator for some people with autism.

Sure. You can be deaf and not be autistic. You can have a slight speech impediment like stuttering and be perfectly healthy. ETC.