@RunningThroughMyHead Imposter syndrome can be a large part of the thinking when it comes to Autistic women.
One thing I'd say is that an Autism assessment / diagnosis is not a label. Any more than Diabetes or any other condition. It can, and does make you understand yourself.
I don't know if there's anything else in your life that is making you doubt yourself. Another thing I'd say is that partners and family can often contribute to how you feel. In the sense of doubting yourself, or making you feel less worthy.
Ultimately, for me, I had to go for diagnosis. I wrote chapters about my life. My childhood was full of sensory issues - food, clothing, noise, people - and I was painfully shy. I struggled with friendships and relationships. I'm happy in my own company, now. I never feel lonely, but perhaps that's specific to me.
I'd ask yourself these things: Is it impacting you to the point whereby you are significantly struggling? Are you finding it difficult to cope with sensory, communication and social aspects to the point where you avoid them, or do you feel wiped out after feeling 'overloaded'
Many things in life can overwhlem us. Life is frenetic and fast paced. Jobs, kids, partners, ageing parents, menopause. All sorts of stuff can leave us feeling burned out.
Google AQ50 and take the test. Be honest. It's a pre assessment questionnaire used by the medical profession to see if you meet the threshold for assessment. The results will tell you if you meet that threshold.
Even if you don't, see a doctor anyway. You aren't wasting anyone's time. You are struggling, and it always helps to know why.