The sensory experience of living with both Autism and ADHD involves a paradox that most people without the dual profile find difficult to understand. ADHD creates a nervous system that seeks stimulation — that under-responds to input in ways that drive novelty-seeking, fidgeting, sensation-seeking, and difficulty sitting still in under-stimulating environments. Autism can create a nervous system that over-responds to input — that is overwhelmed by sensory environments that most people find entirely unremarkable. Living with both simultaneously means needing more stimulation and being more easily overwhelmed by it, often at the same time.
The resolution to this apparent paradox lies in sensory specificity. Most AuDHD people are not uniformly under- or over-responsive across all sensory channels. A person may be highly seeking for proprioceptive and vestibular input (the sensation of movement, pressure, deep touch) while being significantly aversive to auditory input (sudden sounds, overlapping voices, certain frequencies). They may seek visual complexity in controlled environments (interesting textures, patterns, visual art) while being overwhelmed by unpredictable visual movement (crowded spaces, flickering screens, busy traffic). Building a personal sensory profile means mapping your specific channels — auditory, visual, tactile, olfactory, gustatory, proprioceptive, vestibular, and interoceptive — and identifying where you are seeking versus avoiding, and in what contexts.
The workbook component of this resource walks through a structured self-assessment across each sensory channel, with prompts designed to surface the contextual specificity that a general 'sensory processing' checklist misses. Context matters enormously: an open-plan office at 3pm on a Wednesday is a different sensory environment from the same office at 7am; a social gathering with five close friends differs from one with twenty acquaintances even if the noise levels are similar. The prompts ask about specific environments and situations rather than general sensory sensitivity, which produces a more usable profile.
Once you have mapped your sensory profile, the workbook guides you through designing a sensory toolkit — a personalised set of strategies, tools, and environmental modifications that serve both the stimulation-seeking and overwhelm-management functions. A toolkit might include: noise-cancelling headphones (for auditory overwhelm) and a fidget tool or weighted lap pad (for proprioceptive seeking) used simultaneously; a designated high-stimulation activity (physical exercise, music) used in a controlled way to meet stimulation needs before entering a low-stimulation demand environment; or specific sensory anchors (a particular scent, a consistent texture) used as grounding tools when other channels are in overwhelm.
Environmental design is the proactive complement to the reactive toolkit. Rather than managing sensory overwhelm as it occurs, environmental design means setting up your home, workspace, and daily routines to minimise the frequency of overwhelm and to build in regular restorative sensory input. This might mean establishing a 'sensory reset' space at home with controlled lighting, sound, and minimal visual complexity; negotiating workspace modifications (private desk, door-closed working, specific lighting) as reasonable adjustments; or building movement breaks into your schedule as a deliberate stimulation input rather than leaving them to chance.