mathematicing

I have recently completed a full double major in mathematics and physics outside of the US - the former specialising in pure and applied mathematics. Due to a struggle with mental health issue and test/ exam anxieties, my GPA is around 2.9/4.0. My struggle with mental health issue and test/ exam anxieties can be directly verified by two professors - one of which a chair of a national research group and the other the department head who is also an alumni of the big H. Both have offered to write me a letter of recommendation without me propositioning so I have sufficient reason to think the letter would be a strong letter. I am able to further obtain another letter, giving a total of three letter of recommendation. There is also good reason to think that my struggle with my mental health and anxieties under severely timed assessment may be rectified. In light of these, hat are my chances of being admitted to a top 10 US school for mathematics or physics?