Yes, I think I am. I can't imagine seeking a diagnosis though. I don't have a "my GP" - I'm registered but never go to the doctor so they are all strangers to me. I'm afraid they would just scoff and send me away.
It is impacting my life though. When I was younger I could put up that facade of normality and maintain it enough to get by. As I get older (I am 36 now) I just seem to have less and less of the mental energy needed to do it. More and more often, I don't even try. I have wondered about depression, but I don't feel depressed; I'm not usually sad, I don't feel worthless, I still enjoy things as much as I always have, I look forward to things, I get up every day and get dressed and put on make-up.
But nonetheless, in some ways I'm really on a decline. I barely bother to talk to anyone outside my family...when my first DC started school I remember making the effort to talk to other parents in the schoolyard, I'd go and stand with them and do small talk as best I could. Now, I say hi if someone catches my eye but that's all. I just feel that the will to stand there and concentrate on things like making a normal amount of eye contact (too much? Not enough? Am I staring? Can I look away now? Do I look shifty?) and saying the right things to keep up a conversation ("Oh yes, me too...really? Wow...oh, I know...yeah...") has just gone from me.
It's getting to be an issue because both my DC are in school now, and at some point I'm going to need to get a job, which feels impossible. I don't know how to go about it or what to do, and fear that if I did, by some miracle, manage to get hired to do something, it would break me within months 
Other things: I'm very sensitive to bright light, real or artificial. Never go anywhere without a pair of sunglasses. Feel panic if a motorbike or large vehicle goes by me at speed. Reject many foods untried because the texture looks wrong. Become obsessed with other foods for weeks or months and then abandon them. Obsessed with soft fabrics like cashmere and velvet. Research topics of interest to me exhaustively (usually TV programmes - I watch every episode and then settle in to read everything about it on the internet, actors' biogs, history of the show, how it was created...everything).
On empathy: I feel things very deeply. I never read newspapers or watch the news because the wars, disasters, crimes and stories of abuse hit me too hard and can affect me for a long time.
Considering all of my "quirks" in the light of possible ASD has been extremely interesting for me. It provides an explanation for many, many things. For example, at university I was never able to tell when I was being flirted with. I look back now at various incidents and moments and conversations I had and it's clear that that's what was happening, but at the time I never had any idea!