Blaming the clouds

My father always used to talk to me when I was younger about 'atmospherics' the ability of the weather to have an impact on how you are feeling, particularly in terms of headaches. Things were never explained to me in more depth so I am unable to elaborate other than to say apart from the bookmark of the week, which I will post shortly, I have had a headache all day as London decides if it is going to rain and turn cold or not. As a result I have not felt like reading too much with this nagging headache - apologies but blame the atmospherics!