The 26-year-old is currently undergoing treatment at the rehab facility as part of her 90 days of court-ordered stay, reported Radar online.
She is reportedly telling friends she wants to be move to another facility that would allow her to use the Adderall it as she needs it to treat her Attention Deficit Disorder (ADHD)condition.
"Lindsay is absolutely freaking out about the prospect of gaining weight now that Adderall has been taken away. Lindsay has been able to eat whatever she has wanted and not gain weight for years and she attributes this to Adderall," a source said.
"Betty Ford's food is very, very good and there is a lot of comfort food. She has been working out during the afternoon time allotted for fitness because she doesn't want to get fat," the source added.
Betty Ford's doctors believe that there are plenty of other substitute medicines for ADHD that would help her without the addictive qualities inherent in the drug.
