Odd Symptoms any ideas

[EnlightenedOwl]

I think I will book a doc's appt but any ideas?
I'm 39 generally fit and well been prone to low iron in the past have epilepsy well controlled seizure free. Taking Cipramil for depression - asymptomatic. Have very slight decrease in neutrophil counts - due to taking Tegretol.

Anyway recently have noticed:

Change in periods very light and non-event really, couple of days and that's it. Still regular cycle though
Awful lethargy. I mean literally cannot get my arse off the sofa and do something more interesting instead which is out of character.
Always been greedy for food but not so recently and been more picky about food. Also used to drink quite a lot of coffee but it just tastes rank and bitter now (tried diff brands. lattes etc no difference)
Just been out for a walk and literally could not keep up and felt less than enthusiastic about walking in the first place. Again unusual.

Thoughts?? I wondered if my ferritin levels are down again but didn't get all these symptoms when it was low before

Under active thyroid? B 12 deficiency?

I wondered about thyroid. I need to make an appointment don't I? (I'm someone who swerves the doctor if I can help it!)

Could you be pregnant?

no checked that - nil.
I am wondering about thyroid as checked the symptoms and seem to fit the bill.Also it says you can feel cold a lot - well that's me I feel frozen sometimes. I know we've just come out of winter but some nights feel starved through - and the house is kept warm, been sat there with my big fleecy blanket round me.