The Twitter ADHD dataset used in our paper is available upon reasonable request for research purposes. 

The dataset has two columns:
`user_id`: Twitter ID 
`is_adhd_group`: 1 if user self-disclosed ADHD and 0 if user was in the matched control set.

Twitter Terms of Service doesn’t allow us to share images. 
You could use Twitter API to pull tweets using the IDs — https://github.com/danielpreotiuc/twitter-collection

Please cite this paper if you use the dataset:
Guntuku, S. C., Ramsay, J. R., Merchant, R. M., & Ungar, L. H. (2019). Language of ADHD in adults on social media. Journal of attention disorders, 23(12), 1475-1485.