The only way to find out would be an autism screening.
Being autistic is inherently traumatic and around puberty for girls these struggles really amp up.
A lot of OPs daughters behaviours could be trauma related but can also be ND related.
We've obviously only got a very narrow view of OPs daughters life and the OP has said she doesn't think her daughter is autistic and I respect that.
If you look at my earlier post though, I've highlighted a lot of behaviours that do fall within the autism screening criteria. I'm not diagnosing OPs child but I do think every one should have an open mind about this. The average age for an autism diagnosis in women is 38. That's usually because autistic behaviours in women are seen as normal over generations, because they're so similar due to how were socialised differently.
I also think it's really important that every one reads the OPs posts, and understands: she does hug her daughter at least 4 times a day, and does hug her throughout the day, however can't respond to every single bid for physical connection because she had caring responsibilities for her other child, sensory social and emotional challenges that she needs to manage to be the best mum she can be when she does have quality time to spend with her children, she offers physical touch and connection through other means too like handholding, tickling, tracing shapes, playing with hair etc. The OP isn't denying her daughter physical touch, the OPs daughter is simply seeking proprioceptive and emotional input in extreme ways such as pinning her brother down, picking her friends up after they've asked her to stop to the point of frienship breakdown, ramming into OP, hanging off OPs neck, wrestling, and other ways that are not safe, appropriate, or respectful of boundaries. Nobody should be saying that the OPs child should have grown out of hugs, but the OPs child is old enough to recognise that she has personal boundaries and so do everybody else and therefore everyone deserves to have their boundaries respected. We aren't talking about a child who is saying "mum can I have a hug?" And then OP saying "no! I hate hugs!" We're talking about a child who doesn't understand consent, a mother with already heightened sensory sensitivities, and who has stated she feels like she is being harassed and understandably so because there is no bid for consent. If there was, OP would surely give it willingly.
In no other world would you tell someone with any time of trauma, ptsd, cPTSD etc that they should ignore the things that make them uncomfortable or stressed or dysregulated, and the OP shouldn't either. The tools the OP needs are the ones where mutual consent can be seen, heard, understood and acted on. Some children need really hard boundaries, especially children who may have, without a hop skip jump or leap, their own social, communication, sensory and emotional deficits.