Did I see correctly in my session for [name withheld] that she had a lost soul spirit who was a jealous rival in several past lives and had strangled her to get her out of the way as being the reason for her feeling like she’s being choked?

This indeed is the case. You saw this quite accurately, and even the manner of death, and even the exact circumstances were as you perceived. It was a long scarf of cotton that was not stretchy and this made quite a fine tool when rolled up and wrapped tightly around the neck and pulled with all one’s might, served to compress the trachea quite effectively, and that coupled with her sitting on the victim’s back with her knees on either side of the spine, with her full body weight, served to complete the job.