Sounds about right. [There was once a time when Sherlock had texted him a series of symptoms that was similar to what the man was describing now. However John hadn't actually been there the only time it had ever happened and he certainly didn't witness the memory.] It was bad, then?

Not a proper one. Whenever I've looked at him there were always more pressing issues. [Like tending to broken legs or saving his life. Couldn't exactly do a series of tests on the ship or how to explain it at the hospital and be allowed to do it himself.]