Context: I've been working as an IT specialist for > 15 years (some years full time in the office and last few years as a freelancer) and have a higher education degree in IT. I have Asperger's and comorbidities of a bipolar and anxiety disorders.  
I had job several interviews in a US company (I'm not a citizen nor resident of US, but they knew that and the job was supposed to come with H1B visa), and they repeatedly rejected me for no apparent reason (for at least 3 times).  


Q: Is it possible to file a lawsuit against them for job discrimination?