nikid,
You don't say if you are on meds, post op or still sick.
All that I can say is that all of those situations are stressors for your body and your system and whether we like it or not our bodys are programed to 'reserve our energy' for their essential functions such as organ maintenance, resperation, cerebral functions etc...So we often lose our hair, teeth, nails etc
This is cyclic...if you are post op then generally regrowth starts a couple of months later (4-6) but if you are on meds that are doing this to you then you either have to be off the meds or wait a while and take special care...
If it is definciency related then, if your doctor permits, you can take certain suppliment (zinc, collagene, a good multi-vit, a multi mineral, silicium...) to help your body to heal and rebuild.
I loved what my dermato told me to do when I looked like a blad egle...I used H&S and massaged my scalp at every washing for 5 minutes using the shampoo...regrowth was spectacular and very rapid...the H&S contains a zincoxide formula (not good if you have had breast cancer apparently)...and by massaging it into your scalp it helps penetration of the active ingredients and stimulates blood circulation to your scalp, nourishing your hair folicules...
That's it
Sharon