Acid? Nope, classic migraine. I am one of the lucky folks who share the same plight that Lewis Carol, author of Alice in Wonderland, suffered. No wonder he wrote such a crazy story. I'm not feeling that great, so no long blog post. Here is the link to the image source and a great explanation of the phenomena. Luckily I don't get them very often.
Migraine and epilepsy
In his diary for 1880, Dodgson recorded experiencing his first episode of migraine with aura, describing very accurately the process of 'moving fortifications' that are a manifestation of the aura stage of the syndrome. Unfortunately there is no clear evidence to show whether this was his first experience of migraine per se, or if he may have previously suffered the far more common form of migraine without aura, although the latter seems most likely, given the fact that migraine most commonly develops in the teens or early adulthood.Another form of migraine aura, Alice in Wonderland Syndrome, has been named after Dodgson's little heroine, because its manifestation can resemble the sudden size-changes in the book. Also known as micropsia and macropsia, it is a brain condition affecting the way objects are perceived by the mind. For example, an afflicted person may look at a larger object, like a basketball, and perceive it as if it were the size of a golf ball. Some authors have suggested that Dodgson may have suffered from this type of aura, and used it as an inspiration in his work, but there is no evidence that he did.
Dodgson also suffered two attacks in which he lost consciousness. He was diagnosed by three different doctors; a Dr. Morshead, Dr. Brooks, and Dr. Stedman, believed the attack and a consequent attack to be an "epileptiform" seizure (initially thought to be fainting, but Brooks changed his mind). Some have concluded from this he was a lifetime sufferer of this condition, but there is no evidence of this in his diaries beyond the diagnosis of the two attacks already mentioned. Some authors, in particular Sadi Ranson, have suggested Carroll may have suffered from temporal lobe epilepsy in which consciousness is not always completely lost, but altered, and in which the symptoms mimic many of the same experiences as Alice in Wonderland. Carroll had at least one incidence in which he suffered full loss of consciousness and awoke with a bloody nose, which he recorded in his diary and noted that the episode left him not feeling himself for "quite sometime afterward". This attack was diagnosed as possibly "epileptiform" and Carroll himself later wrote of his "seizures" in the same diary.
Most of the standard diagnostic tests of today were not available in the nineteenth century. Recently, Dr Yvonne Hart, consultant neurologist at the Radcliffe Hospital, Oxford, considered Dodgson's symptoms. Her conclusion, quoted in Jenny Woolf's The Mystery of Lewis Carroll, is that Dodgson very likely had migraine, and may have had epilepsy, but she emphasises that she would have considerable doubt about making a diagnosis of epilepsy without further information.