raininginbaltimore, I want to reassure you about a few things and to try and help you feel a lot more 'normal' about what you have experienced and how you feel right now. Stop beating yourself up about this.
Fear is by its very nature isn't a very rational thing, however its often based on a past bad experience and wanting to avoid repeating that so whilst its not always rational it is explainable. You don't need to try and explain why your reaction isn't what you think it should be, nor justify your panic attacks. You ARE reacting in a normal way.
What you consider to be traumatic is like beauty; purely in the eye of the beholder and not based on what other people tell you or value. If your first birth was traumatic to you, then it was a traumatic birth. It does not matter how it compares to anyone else's experiences or whether they think it was traumatic. You don't have to justify yourself.
Birth trauma is a lot more common than people give credit for. It should be given a much greater respect, and be accepted on the same level of acceptability as other mental health issues like depression.
The thing is you need to work out how you are going to deal with your fears, and to do that, a good starting point would be to write down the things that are bothering you and worrying you the most point by point and work things out from there. Approach it like eating an elephant. One bite at a time.
Is it being left on your own? Is it coping with pain? Is it feeling out of control? Is it a lack of trust in the staff in the hospital you were at previously? Is it the atmosphere and culture of the hospital? Etc etc.
I would consider an ELCS, but I don't think I would be allowed one as there is no medical reason.
Contrary to popular belief mental health reasons do count as medical reasons, but whether you would be allowed one on those grounds would be down more to hospital policy in your area and the consultant you have. Not everyone and everywhere is enlightened as they should be. If you do feel its the right option for you, you might need to be prepared for a battle to get one which you should be aware of as it might effect how you feel about it. You may get a sympathetic consultant willing to fight your corner but sadly at this moment in time there is no guarentees of that.
From what you've said, since you haven't ruled out a VB and have opted for a MLU, I'm not convinced that an ELCS would be the best course of action in your case. It might be, but only you can make that decision. Other options may be for you. There is no 'right answer' just a right answer for you. Its such a personal decision; don't be swayed by what others think if it makes you feel uncomfortable.
You need to find out what all your options are and if you are able to get more mental health support along the way. If you have a mental health midwife appointment you are on the right track by the sound of it. That doesn't certainly does not necessarily mean medication nor psych treatment. It sounds like you might benefit from support and reassurance generally rather than that.
How much do you have from friends and family? I'm making the assumption here that if you can't afford a course, you wouldn't be able to afford a doula which would be the option I would normally suggest.