My motor skills shut down after meals and snacks.
Postprandial evaluation - nOH after meals.
The recommendations of a consensus panel for the screening, diagnosis, and treatment of neurogenic orthostatic hypotension and associated supine hypertension.
[Excerpts.] Postprandial evaluation.
Christopher H. Gibbons, Peter Schmidt, [...], and Horacio Kaufmann.
J Neurol. 2017; 264(8): 1567–1582.
It should be noted that large meals, particularly those high in carbohydrates or associated with alcohol, can magnify the drop in blood pressure. Elderly persons are more susceptible to these effects . If symptoms are more prominent postprandially, then measurement of orthostatic blood pressures before and after meals should be considered.
In patients with OH/nOH, normal sympathetic activity cannot compensate for blood pooling within the splanchnic circulation after eating. With nOH, sympathetic vasoconstrictor nerve activity is deficient and many patients become severely hypotensive within 2 h of eating [8, 68].
It is important to recognize this problem because treatment of OH/nOH can diminish symptoms post-meal. Patients can be asked to measure their blood pressure before and 30 min after a high carbohydrate meal. In individuals with postprandial hypotension, smaller, more frequent meals are recommended [69, 70].
There is also some evidence that a low glycemic diet may have a beneficial effect on the symptoms of OH/nOH [68, 71, 72]. Finally, postprandial hypotension can be reduced with caffeine  or acarbose .