PDPD/POSTPARTUM MIGRAINE/OCCIPITAL NEURA

I am 31 years of age. I developed post-dural puncture headache about 33 days back, post my normal vagina delivery after epidural. I was on complete bed rest, dolopar tablet and caffeine, and about 10 to 12 days I was recovered. I was asymptomatic for almost a week. Then for the past 10 days, I developed unilateral throbbing pain in the occiput, which then radiates to behind the mastoid temple and then to vertex and parietal area. These symptoms are only on the right side. whenever I lie down after an initial throbbing, my symptoms disappear. Some times i have associated scalp tenderness on right side .Can you tell me what is the risk cause for this? No blurring, nausea or vomiting Before pregnancy i had once a month headache during menustration in right frontal region relieved by naprosyn I was on side lying position for initial 10-12 days after breast feeding but then i was feeding the baby in sitting posture But for past 3 days im on side lying posture .no smoking/alcohol