No. Susan knew what was happening. In an instant she went from worried ex-girlfriend to Healer. Springing out of bed, Susan pulled out her wand and cast a spell, stilling his body to lessen the shaking. His brain might be a little thick, but Susan didn't want it rattling around in his head. Moving him, Susan turned Seamus onto his side and placed the pillow under his head. There was nothing she could do to stop the seizure, but in that moment Susan would've made a deal with Voldemort himself to keep Seamus safe.
She didn't know if it was seconds or minutes, but it was the longest moment of her life. Susan's heart constricted and her eyes filled with tears. He was hurting and there was nothing, nothing at all she could do to stop it. Her lungs burned and Susan exhaled loudly, not realizing she'd been holding her breath. "Seamus," she said through her tears. "Please, Fin, stop. Please."