Incidentally, lung scans with radioactive contrast no longer is the best test to rule out a lung clot. CT scan is now the preferred test to prove or disprove the diagnosis. (See also Information Breastfeeding and Medication)
2. Breastfeeding mothers' milk can "dry up" just like that.
Or if this can occur, it must be a rare occurrence. Aside from day-to-day and morning-to-evening variations, milk production does not change suddenly. There are changes which occur which may make it seem as if milk production is suddenly much less:
The birth control pill may decrease your milk supply. Think about stopping the pill or changing to a progesterone only pill. Or use other methods. Other drugs that can decrease milk supply are pseudoephedrine (Sudafed), some antihistamines, and perhaps diuretics.
If the baby truly seems not to be getting enough, get help, but do not introduce a bottle that may only make things worse. If absolutely necessary, the baby can be supplemented, using a lactation aid that will not interfere with breastfeeding, or by cup if the baby will not take the aid. However, lots can be done before giving supplements. Get help. Try compressing the breast with your hand to help the baby get milk (Information Sheet Is my Baby Getting Enough Milk?).
3. Physicians know a lot about breastfeeding.
Obviously, there are exceptions. However, very few physicians trained in North America or Western Europe learned anything at all about breastfeeding in medical school. Even fewer learned about the practical aspects of helping mothers start breastfeeding and helping them maintain breastfeeding. After medical school, most of the information physicians get regarding infant feeding comes from formula company representatives or advertisements.
4. Pediatricians, at least, know a lot about breastfeeding.
Obviously, there are exceptions. However, in their post-medical school training (residency), most pediatricians learned nothing formally about breastfeeding, and what they picked up in passing was often wrong. To many trainees in pediatrics, breastfeeding is seen as an "obstacle to the good medical care" of hospitalized babies.