These are fatwas about migranes during fast.
I hope this article will answer your question because you are in the same situation.
Does suffering migraines mean that one is allowed not to fast?
http://www.islam-qa.com/en/ref/38040/migraine fasting
I have a friend who does not fast because she gets migraines. is that alright? how can she make them up?.
Praise be to Allaah.
It is permissible for one who is sick not to fast in Ramadaan, because Allaah says (interpretation of the meaning):
“but if any of you is ill or on a journey, the same number (should be made up) from other days”
[al-Baqarah 2:185]
This has to do with severe illness where it is too difficult to fast.
With regard to mild illness where it is not too difficult to fast, this is not regarded as an excuse not to fast in Ramadaan.
See also question no. 12488
If the migraine makes it too difficult for her to fast, then it is permissible for her not to fast, and she should make up the days that she missed after Ramadaan.
If this migraine is continuous and she cannot make up the fasts, then she should feed one poor person for each day that she did not fast.
And Allaah knows best.
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So if the migraines as well as other symptoms are too unbearable for you and you are unable to complete your fast, then it is permissible to break that fast by eating or taking medicine. Insha'Allah, Allah will make it easy for you to fast.
On a side note, you should see a doctor about those migraines, because these symptoms might be an indication of a more serious problem and knowing the root cause might help you prevent them in the future.